Home / 38,689.38-57,956.31-20,182.50

Finding the Fourth Proportional to 38,689.38, 57,956.31 and 20,182.50

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Solution

The fourth proportional to 38,689.38, 57,956.31 and 20,182.50 is: 30,233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689.38 : 57,956.31 = 20,182.50 : x
  2. Step 2: Convert to fraction form
    38,689.38/57,956.31 = 20,182.50/x
  3. Step 3: Cross multiply
    38,689.38x = 57,956.31 × 20,182.50
  4. Step 4: Simplify right side
    38,689.38x = 1,169,703,226.58
  5. Step 5: Solve for x
    x = 1,169,703,226.58/38,689.38
  6. Step 6: Final answer
    x = 30,233.19

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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.