Home / 38,470.05-57,699.30-12,171.38

Finding the Fourth Proportional to 38,470.05, 57,699.30 and 12,171.38

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Solution

The fourth proportional to 38,470.05, 57,699.30 and 12,171.38 is: 18,255.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,470.05 : 57,699.30 = 12,171.38 : x
  2. Step 2: Convert to fraction form
    38,470.05/57,699.30 = 12,171.38/x
  3. Step 3: Cross multiply
    38,470.05x = 57,699.30 × 12,171.38
  4. Step 4: Simplify right side
    38,470.05x = 702,279,817.54
  5. Step 5: Solve for x
    x = 702,279,817.54/38,470.05
  6. Step 6: Final answer
    x = 18,255.24

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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.