Home / 29,344.38-40,495.32-15,915.64

Finding the Fourth Proportional to 29,344.38, 40,495.32 and 15,915.64

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Solution

The fourth proportional to 29,344.38, 40,495.32 and 15,915.64 is: 21,963.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,344.38 : 40,495.32 = 15,915.64 : x
  2. Step 2: Convert to fraction form
    29,344.38/40,495.32 = 15,915.64/x
  3. Step 3: Cross multiply
    29,344.38x = 40,495.32 × 15,915.64
  4. Step 4: Simplify right side
    29,344.38x = 644,508,931.88
  5. Step 5: Solve for x
    x = 644,508,931.88/29,344.38
  6. Step 6: Final answer
    x = 21,963.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.