Home / 21,724.20-29,993.22-14,929.38

Finding the Fourth Proportional to 21,724.20, 29,993.22 and 14,929.38

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Solution

The fourth proportional to 21,724.20, 29,993.22 and 14,929.38 is: 20,612.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,724.20 : 29,993.22 = 14,929.38 : x
  2. Step 2: Convert to fraction form
    21,724.20/29,993.22 = 14,929.38/x
  3. Step 3: Cross multiply
    21,724.20x = 29,993.22 × 14,929.38
  4. Step 4: Simplify right side
    21,724.20x = 447,780,178.80
  5. Step 5: Solve for x
    x = 447,780,178.80/21,724.20
  6. Step 6: Final answer
    x = 20,612.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.