Home / 38,530.32-57,691.12-20,023.44

Finding the Fourth Proportional to 38,530.32, 57,691.12 and 20,023.44

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Solution

The fourth proportional to 38,530.32, 57,691.12 and 20,023.44 is: 29,980.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,530.32 : 57,691.12 = 20,023.44 : x
  2. Step 2: Convert to fraction form
    38,530.32/57,691.12 = 20,023.44/x
  3. Step 3: Cross multiply
    38,530.32x = 57,691.12 × 20,023.44
  4. Step 4: Simplify right side
    38,530.32x = 1,155,174,679.85
  5. Step 5: Solve for x
    x = 1,155,174,679.85/38,530.32
  6. Step 6: Final answer
    x = 29,980.93

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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.