Home / 31,456.87-47,151.19-15,673.68

Finding the Fourth Proportional to 31,456.87, 47,151.19 and 15,673.68

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Solution

The fourth proportional to 31,456.87, 47,151.19 and 15,673.68 is: 23,493.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456.87 : 47,151.19 = 15,673.68 : x
  2. Step 2: Convert to fraction form
    31,456.87/47,151.19 = 15,673.68/x
  3. Step 3: Cross multiply
    31,456.87x = 47,151.19 × 15,673.68
  4. Step 4: Simplify right side
    31,456.87x = 739,032,663.68
  5. Step 5: Solve for x
    x = 739,032,663.68/31,456.87
  6. Step 6: Final answer
    x = 23,493.52

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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.