Home / 38,435.60-57,657.24-11,781.28

Finding the Fourth Proportional to 38,435.60, 57,657.24 and 11,781.28

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Solution

The fourth proportional to 38,435.60, 57,657.24 and 11,781.28 is: 17,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,435.60 : 57,657.24 = 11,781.28 : x
  2. Step 2: Convert to fraction form
    38,435.60/57,657.24 = 11,781.28/x
  3. Step 3: Cross multiply
    38,435.60x = 57,657.24 × 11,781.28
  4. Step 4: Simplify right side
    38,435.60x = 679,276,088.47
  5. Step 5: Solve for x
    x = 679,276,088.47/38,435.60
  6. Step 6: Final answer
    x = 17,673.10

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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.