Find the fourth proportional to the numbers 60, 48, 30.
FPSC Past Papers / All - Multiple-choice practice
- A. 48
- B. 24
- C. None
- D. 36
Correct answer
24
Explanation
Explanation To find the fourth proportional, we need to set up a proportion : 60 : 48 :: 30 : x Where x is the fourth proportional. We can rewrite this as: 60/48 = 30/x Cross-multiplying, we get: 60x = 30 × 48 Simplifying, we get: 60x = 1440 Dividing both sides by 60, we get: x = 24 So, the fourth proportional is 24.
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