Home / 22,553.52-31,129.60-15,012.48

Finding the Fourth Proportional to 22,553.52, 31,129.60 and 15,012.48

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Solution

The fourth proportional to 22,553.52, 31,129.60 and 15,012.48 is: 20,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,553.52 : 31,129.60 = 15,012.48 : x
  2. Step 2: Convert to fraction form
    22,553.52/31,129.60 = 15,012.48/x
  3. Step 3: Cross multiply
    22,553.52x = 31,129.60 × 15,012.48
  4. Step 4: Simplify right side
    22,553.52x = 467,332,497.41
  5. Step 5: Solve for x
    x = 467,332,497.41/22,553.52
  6. Step 6: Final answer
    x = 20,721.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.