Home / 38,139.82-57,225.46-16,781.56

Finding the Fourth Proportional to 38,139.82, 57,225.46 and 16,781.56

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Solution

The fourth proportional to 38,139.82, 57,225.46 and 16,781.56 is: 25,179.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,139.82 : 57,225.46 = 16,781.56 : x
  2. Step 2: Convert to fraction form
    38,139.82/57,225.46 = 16,781.56/x
  3. Step 3: Cross multiply
    38,139.82x = 57,225.46 × 16,781.56
  4. Step 4: Simplify right side
    38,139.82x = 960,332,490.52
  5. Step 5: Solve for x
    x = 960,332,490.52/38,139.82
  6. Step 6: Final answer
    x = 25,179.26

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1.5x scale

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.