Home / 38,138.31-57,169.26-13,166.01

Finding the Fourth Proportional to 38,138.31, 57,169.26 and 13,166.01

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Solution

The fourth proportional to 38,138.31, 57,169.26 and 13,166.01 is: 19,735.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,138.31 : 57,169.26 = 13,166.01 : x
  2. Step 2: Convert to fraction form
    38,138.31/57,169.26 = 13,166.01/x
  3. Step 3: Cross multiply
    38,138.31x = 57,169.26 × 13,166.01
  4. Step 4: Simplify right side
    38,138.31x = 752,691,048.85
  5. Step 5: Solve for x
    x = 752,691,048.85/38,138.31
  6. Step 6: Final answer
    x = 19,735.83

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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.