Home / 38,355.30-57,538.62-19,645.92

Finding the Fourth Proportional to 38,355.30, 57,538.62 and 19,645.92

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Solution

The fourth proportional to 38,355.30, 57,538.62 and 19,645.92 is: 29,471.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,355.30 : 57,538.62 = 19,645.92 : x
  2. Step 2: Convert to fraction form
    38,355.30/57,538.62 = 19,645.92/x
  3. Step 3: Cross multiply
    38,355.30x = 57,538.62 × 19,645.92
  4. Step 4: Simplify right side
    38,355.30x = 1,130,399,125.43
  5. Step 5: Solve for x
    x = 1,130,399,125.43/38,355.30
  6. Step 6: Final answer
    x = 29,471.78

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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.