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Finding the Fourth Proportional to 22,730.91, 34,111.97 and 7,939.86

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Solution

The fourth proportional to 22,730.91, 34,111.97 and 7,939.86 is: 11,915.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,730.91 : 34,111.97 = 7,939.86 : x
  2. Step 2: Convert to fraction form
    22,730.91/34,111.97 = 7,939.86/x
  3. Step 3: Cross multiply
    22,730.91x = 34,111.97 × 7,939.86
  4. Step 4: Simplify right side
    22,730.91x = 270,844,266.12
  5. Step 5: Solve for x
    x = 270,844,266.12/22,730.91
  6. Step 6: Final answer
    x = 11,915.24

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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.