Home / 38,138.82-57,234.18-20,610.42

Finding the Fourth Proportional to 38,138.82, 57,234.18 and 20,610.42

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Solution

The fourth proportional to 38,138.82, 57,234.18 and 20,610.42 is: 30,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,138.82 : 57,234.18 = 20,610.42 : x
  2. Step 2: Convert to fraction form
    38,138.82/57,234.18 = 20,610.42/x
  3. Step 3: Cross multiply
    38,138.82x = 57,234.18 × 20,610.42
  4. Step 4: Simplify right side
    38,138.82x = 1,179,620,488.16
  5. Step 5: Solve for x
    x = 1,179,620,488.16/38,138.82
  6. Step 6: Final answer
    x = 30,929.65

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1.5x scale

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.