Home / 38,490.66-57,691.94-17,398.86

Finding the Fourth Proportional to 38,490.66, 57,691.94 and 17,398.86

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Solution

The fourth proportional to 38,490.66, 57,691.94 and 17,398.86 is: 26,078.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,490.66 : 57,691.94 = 17,398.86 : x
  2. Step 2: Convert to fraction form
    38,490.66/57,691.94 = 17,398.86/x
  3. Step 3: Cross multiply
    38,490.66x = 57,691.94 × 17,398.86
  4. Step 4: Simplify right side
    38,490.66x = 1,003,773,987.19
  5. Step 5: Solve for x
    x = 1,003,773,987.19/38,490.66
  6. Step 6: Final answer
    x = 26,078.38

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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.