Home / 38,078.60-57,120.33-11,781.14

Finding the Fourth Proportional to 38,078.60, 57,120.33 and 11,781.14

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Solution

The fourth proportional to 38,078.60, 57,120.33 and 11,781.14 is: 17,672.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,078.60 : 57,120.33 = 11,781.14 : x
  2. Step 2: Convert to fraction form
    38,078.60/57,120.33 = 11,781.14/x
  3. Step 3: Cross multiply
    38,078.60x = 57,120.33 × 11,781.14
  4. Step 4: Simplify right side
    38,078.60x = 672,942,604.58
  5. Step 5: Solve for x
    x = 672,942,604.58/38,078.60
  6. Step 6: Final answer
    x = 17,672.46

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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.