Home / 20,726.17-31,084.89-6,687.52

Finding the Fourth Proportional to 20,726.17, 31,084.89 and 6,687.52

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Solution

The fourth proportional to 20,726.17, 31,084.89 and 6,687.52 is: 10,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.17 : 31,084.89 = 6,687.52 : x
  2. Step 2: Convert to fraction form
    20,726.17/31,084.89 = 6,687.52/x
  3. Step 3: Cross multiply
    20,726.17x = 31,084.89 × 6,687.52
  4. Step 4: Simplify right side
    20,726.17x = 207,880,823.57
  5. Step 5: Solve for x
    x = 207,880,823.57/20,726.17
  6. Step 6: Final answer
    x = 10,029.87

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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.