Home / 38,082.60-57,129.48-11,789.64

Finding the Fourth Proportional to 38,082.60, 57,129.48 and 11,789.64

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Solution

The fourth proportional to 38,082.60, 57,129.48 and 11,789.64 is: 17,686.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,082.60 : 57,129.48 = 11,789.64 : x
  2. Step 2: Convert to fraction form
    38,082.60/57,129.48 = 11,789.64/x
  3. Step 3: Cross multiply
    38,082.60x = 57,129.48 × 11,789.64
  4. Step 4: Simplify right side
    38,082.60x = 673,536,002.59
  5. Step 5: Solve for x
    x = 673,536,002.59/38,082.60
  6. Step 6: Final answer
    x = 17,686.19

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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.