Home / 19,540.38-29,318.76-8,441.36

Finding the Fourth Proportional to 19,540.38, 29,318.76 and 8,441.36

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Solution

The fourth proportional to 19,540.38, 29,318.76 and 8,441.36 is: 12,665.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.38 : 29,318.76 = 8,441.36 : x
  2. Step 2: Convert to fraction form
    19,540.38/29,318.76 = 8,441.36/x
  3. Step 3: Cross multiply
    19,540.38x = 29,318.76 × 8,441.36
  4. Step 4: Simplify right side
    19,540.38x = 247,490,207.91
  5. Step 5: Solve for x
    x = 247,490,207.91/19,540.38
  6. Step 6: Final answer
    x = 12,665.58

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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.