Home / 38,581.59-57,826.11-19,870.47

Finding the Fourth Proportional to 38,581.59, 57,826.11 and 19,870.47

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Solution

The fourth proportional to 38,581.59, 57,826.11 and 19,870.47 is: 29,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,581.59 : 57,826.11 = 19,870.47 : x
  2. Step 2: Convert to fraction form
    38,581.59/57,826.11 = 19,870.47/x
  3. Step 3: Cross multiply
    38,581.59x = 57,826.11 × 19,870.47
  4. Step 4: Simplify right side
    38,581.59x = 1,149,031,983.97
  5. Step 5: Solve for x
    x = 1,149,031,983.97/38,581.59
  6. Step 6: Final answer
    x = 29,781.87

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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.