Home / 38,279.88-57,419.82-11,984.76

Finding the Fourth Proportional to 38,279.88, 57,419.82 and 11,984.76

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Solution

The fourth proportional to 38,279.88, 57,419.82 and 11,984.76 is: 17,977.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,279.88 : 57,419.82 = 11,984.76 : x
  2. Step 2: Convert to fraction form
    38,279.88/57,419.82 = 11,984.76/x
  3. Step 3: Cross multiply
    38,279.88x = 57,419.82 × 11,984.76
  4. Step 4: Simplify right side
    38,279.88x = 688,162,761.94
  5. Step 5: Solve for x
    x = 688,162,761.94/38,279.88
  6. Step 6: Final answer
    x = 17,977.14

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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.