Home / 38,143.85-57,141.97-21,453.17

Finding the Fourth Proportional to 38,143.85, 57,141.97 and 21,453.17

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Solution

The fourth proportional to 38,143.85, 57,141.97 and 21,453.17 is: 32,138.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143.85 : 57,141.97 = 21,453.17 : x
  2. Step 2: Convert to fraction form
    38,143.85/57,141.97 = 21,453.17/x
  3. Step 3: Cross multiply
    38,143.85x = 57,141.97 × 21,453.17
  4. Step 4: Simplify right side
    38,143.85x = 1,225,876,057.20
  5. Step 5: Solve for x
    x = 1,225,876,057.20/38,143.85
  6. Step 6: Final answer
    x = 32,138.24

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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.