Home / 47,882.26-71,790.08-21,213.78

Finding the Fourth Proportional to 47,882.26, 71,790.08 and 21,213.78

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Solution

The fourth proportional to 47,882.26, 71,790.08 and 21,213.78 is: 31,805.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,882.26 : 71,790.08 = 21,213.78 : x
  2. Step 2: Convert to fraction form
    47,882.26/71,790.08 = 21,213.78/x
  3. Step 3: Cross multiply
    47,882.26x = 71,790.08 × 21,213.78
  4. Step 4: Simplify right side
    47,882.26x = 1,522,938,963.30
  5. Step 5: Solve for x
    x = 1,522,938,963.30/47,882.26
  6. Step 6: Final answer
    x = 31,805.91

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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.