Home / 38,105.47-57,142.56-11,442.15

Finding the Fourth Proportional to 38,105.47, 57,142.56 and 11,442.15

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Solution

The fourth proportional to 38,105.47, 57,142.56 and 11,442.15 is: 17,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,105.47 : 57,142.56 = 11,442.15 : x
  2. Step 2: Convert to fraction form
    38,105.47/57,142.56 = 11,442.15/x
  3. Step 3: Cross multiply
    38,105.47x = 57,142.56 × 11,442.15
  4. Step 4: Simplify right side
    38,105.47x = 653,833,742.90
  5. Step 5: Solve for x
    x = 653,833,742.90/38,105.47
  6. Step 6: Final answer
    x = 17,158.53

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1.5x scale

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.