Home / 20,519.06-30,747.78-15,832.04

Finding the Fourth Proportional to 20,519.06, 30,747.78 and 15,832.04

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Solution

The fourth proportional to 20,519.06, 30,747.78 and 15,832.04 is: 23,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,519.06 : 30,747.78 = 15,832.04 : x
  2. Step 2: Convert to fraction form
    20,519.06/30,747.78 = 15,832.04/x
  3. Step 3: Cross multiply
    20,519.06x = 30,747.78 × 15,832.04
  4. Step 4: Simplify right side
    20,519.06x = 486,799,929.13
  5. Step 5: Solve for x
    x = 486,799,929.13/20,519.06
  6. Step 6: Final answer
    x = 23,724.29

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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.