Home / 21,324.62-31,960.98-15,086.43

Finding the Fourth Proportional to 21,324.62, 31,960.98 and 15,086.43

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Solution

The fourth proportional to 21,324.62, 31,960.98 and 15,086.43 is: 22,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.62 : 31,960.98 = 15,086.43 : x
  2. Step 2: Convert to fraction form
    21,324.62/31,960.98 = 15,086.43/x
  3. Step 3: Cross multiply
    21,324.62x = 31,960.98 × 15,086.43
  4. Step 4: Simplify right side
    21,324.62x = 482,177,087.50
  5. Step 5: Solve for x
    x = 482,177,087.50/21,324.62
  6. Step 6: Final answer
    x = 22,611.28

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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.