Home / 29,343.92-40,494.38-15,915.20

Finding the Fourth Proportional to 29,343.92, 40,494.38 and 15,915.20

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Solution

The fourth proportional to 29,343.92, 40,494.38 and 15,915.20 is: 21,962.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,343.92 : 40,494.38 = 15,915.20 : x
  2. Step 2: Convert to fraction form
    29,343.92/40,494.38 = 15,915.20/x
  3. Step 3: Cross multiply
    29,343.92x = 40,494.38 × 15,915.20
  4. Step 4: Simplify right side
    29,343.92x = 644,475,874.53
  5. Step 5: Solve for x
    x = 644,475,874.53/29,343.92
  6. Step 6: Final answer
    x = 21,962.85

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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.