Home / 41,324.72-61,981.76-13,242.40

Finding the Fourth Proportional to 41,324.72, 61,981.76 and 13,242.40

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Solution

The fourth proportional to 41,324.72, 61,981.76 and 13,242.40 is: 19,861.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,324.72 : 61,981.76 = 13,242.40 : x
  2. Step 2: Convert to fraction form
    41,324.72/61,981.76 = 13,242.40/x
  3. Step 3: Cross multiply
    41,324.72x = 61,981.76 × 13,242.40
  4. Step 4: Simplify right side
    41,324.72x = 820,787,258.62
  5. Step 5: Solve for x
    x = 820,787,258.62/41,324.72
  6. Step 6: Final answer
    x = 19,861.90

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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.