Home / 31,869.10-47,793.85-10,517.86

Finding the Fourth Proportional to 31,869.10, 47,793.85 and 10,517.86

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Solution

The fourth proportional to 31,869.10, 47,793.85 and 10,517.86 is: 15,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,869.10 : 47,793.85 = 10,517.86 : x
  2. Step 2: Convert to fraction form
    31,869.10/47,793.85 = 10,517.86/x
  3. Step 3: Cross multiply
    31,869.10x = 47,793.85 × 10,517.86
  4. Step 4: Simplify right side
    31,869.10x = 502,689,023.16
  5. Step 5: Solve for x
    x = 502,689,023.16/31,869.10
  6. Step 6: Final answer
    x = 15,773.56

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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.