Advertisements
Advertisements
Question
Find the fourth term of the proportion whose first, second, and third terms are 18, 27, and 32 respectively.
Advertisements
Solution
Let the fourth term = x
18 : 27 : : 32 : x
⇒ 18 × x = 27 × 32
⇒ x = `(27xx32)/18` = 3 × 16 = 48
Fourth term = 48
APPEARS IN
RELATED QUESTIONS
In a mixture of 126 kg of milk and water, milk and water are in ratio 5 : 2. How much water must be added to the mixture to make this ratio 3 : 2?
Convert the following percentage to fractions and ratio:
25%
Find: The reciprocal ratio of 8: 15.
Find the fourth proportional of 4 hours 40 minutes, 1 hour 10 minutes and 16 hours.
Two numbers are in the ratio 9 : 2. If the smaller number is 320, find the larger number.
The ratio of the length and the width of a rectangular sheet of paper is 8 : 5. If the width of the sheet is 17.5 cm; find the length.
A rail journey of 75 km costs Rs 215. How much will a journey of 120 km cost?
Find the ratio of:
2 dozens to a score
Find the value of x when 36 : x : : x : 16.
20 m : 70 m = Rs 8 : Rs ______.
