Home / 31,868.46-47,802.65-15,177.87

Finding the Fourth Proportional to 31,868.46, 47,802.65 and 15,177.87

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Solution

The fourth proportional to 31,868.46, 47,802.65 and 15,177.87 is: 22,766.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,868.46 : 47,802.65 = 15,177.87 : x
  2. Step 2: Convert to fraction form
    31,868.46/47,802.65 = 15,177.87/x
  3. Step 3: Cross multiply
    31,868.46x = 47,802.65 × 15,177.87
  4. Step 4: Simplify right side
    31,868.46x = 725,542,331.47
  5. Step 5: Solve for x
    x = 725,542,331.47/31,868.46
  6. Step 6: Final answer
    x = 22,766.78

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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.