Home / 31,472.92-47,229.30-28,517.39

Finding the Fourth Proportional to 31,472.92, 47,229.30 and 28,517.39

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Solution

The fourth proportional to 31,472.92, 47,229.30 and 28,517.39 is: 42,794.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,472.92 : 47,229.30 = 28,517.39 : x
  2. Step 2: Convert to fraction form
    31,472.92/47,229.30 = 28,517.39/x
  3. Step 3: Cross multiply
    31,472.92x = 47,229.30 × 28,517.39
  4. Step 4: Simplify right side
    31,472.92x = 1,346,856,367.53
  5. Step 5: Solve for x
    x = 1,346,856,367.53/31,472.92
  6. Step 6: Final answer
    x = 42,794.13

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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.