Home / 42,862.98-64,335.92-20,691.93

Finding the Fourth Proportional to 42,862.98, 64,335.92 and 20,691.93

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Solution

The fourth proportional to 42,862.98, 64,335.92 and 20,691.93 is: 31,057.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,862.98 : 64,335.92 = 20,691.93 : x
  2. Step 2: Convert to fraction form
    42,862.98/64,335.92 = 20,691.93/x
  3. Step 3: Cross multiply
    42,862.98x = 64,335.92 × 20,691.93
  4. Step 4: Simplify right side
    42,862.98x = 1,331,234,353.13
  5. Step 5: Solve for x
    x = 1,331,234,353.13/42,862.98
  6. Step 6: Final answer
    x = 31,057.90

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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.