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Finding the Fourth Proportional to 42,250, 63,375.90 and 15,967.12

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Solution

The fourth proportional to 42,250, 63,375.90 and 15,967.12 is: 23,951.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,250 : 63,375.90 = 15,967.12 : x
  2. Step 2: Convert to fraction form
    42,250/63,375.90 = 15,967.12/x
  3. Step 3: Cross multiply
    42,250x = 63,375.90 × 15,967.12
  4. Step 4: Simplify right side
    42,250x = 1,011,930,600.41
  5. Step 5: Solve for x
    x = 1,011,930,600.41/42,250
  6. Step 6: Final answer
    x = 23,951.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.