Home / 20,929.68-28,882.62-11,498.04

Finding the Fourth Proportional to 20,929.68, 28,882.62 and 11,498.04

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Solution

The fourth proportional to 20,929.68, 28,882.62 and 11,498.04 is: 15,867.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.68 : 28,882.62 = 11,498.04 : x
  2. Step 2: Convert to fraction form
    20,929.68/28,882.62 = 11,498.04/x
  3. Step 3: Cross multiply
    20,929.68x = 28,882.62 × 11,498.04
  4. Step 4: Simplify right side
    20,929.68x = 332,093,520.06
  5. Step 5: Solve for x
    x = 332,093,520.06/20,929.68
  6. Step 6: Final answer
    x = 15,867.11

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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.