Home / 38,516.24-57,754.92-18,765.20

Finding the Fourth Proportional to 38,516.24, 57,754.92 and 18,765.20

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Solution

The fourth proportional to 38,516.24, 57,754.92 and 18,765.20 is: 28,138.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,516.24 : 57,754.92 = 18,765.20 : x
  2. Step 2: Convert to fraction form
    38,516.24/57,754.92 = 18,765.20/x
  3. Step 3: Cross multiply
    38,516.24x = 57,754.92 × 18,765.20
  4. Step 4: Simplify right side
    38,516.24x = 1,083,782,624.78
  5. Step 5: Solve for x
    x = 1,083,782,624.78/38,516.24
  6. Step 6: Final answer
    x = 28,138.33

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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.