Home / 25,721.20-38,541.90-17,839.09

Finding the Fourth Proportional to 25,721.20, 38,541.90 and 17,839.09

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Solution

The fourth proportional to 25,721.20, 38,541.90 and 17,839.09 is: 26,730.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721.20 : 38,541.90 = 17,839.09 : x
  2. Step 2: Convert to fraction form
    25,721.20/38,541.90 = 17,839.09/x
  3. Step 3: Cross multiply
    25,721.20x = 38,541.90 × 17,839.09
  4. Step 4: Simplify right side
    25,721.20x = 687,552,422.87
  5. Step 5: Solve for x
    x = 687,552,422.87/25,721.20
  6. Step 6: Final answer
    x = 26,730.96

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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.