Home / 38,481.19-57,721.24-12,185.92

Finding the Fourth Proportional to 38,481.19, 57,721.24 and 12,185.92

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Solution

The fourth proportional to 38,481.19, 57,721.24 and 12,185.92 is: 18,278.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,481.19 : 57,721.24 = 12,185.92 : x
  2. Step 2: Convert to fraction form
    38,481.19/57,721.24 = 12,185.92/x
  3. Step 3: Cross multiply
    38,481.19x = 57,721.24 × 12,185.92
  4. Step 4: Simplify right side
    38,481.19x = 703,386,500.32
  5. Step 5: Solve for x
    x = 703,386,500.32/38,481.19
  6. Step 6: Final answer
    x = 18,278.71

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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.