Home / 13,892.20-20,839.38-4,031.62

Finding the Fourth Proportional to 13,892.20, 20,839.38 and 4,031.62

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Solution

The fourth proportional to 13,892.20, 20,839.38 and 4,031.62 is: 6,047.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.20 : 20,839.38 = 4,031.62 : x
  2. Step 2: Convert to fraction form
    13,892.20/20,839.38 = 4,031.62/x
  3. Step 3: Cross multiply
    13,892.20x = 20,839.38 × 4,031.62
  4. Step 4: Simplify right side
    13,892.20x = 84,016,461.20
  5. Step 5: Solve for x
    x = 84,016,461.20/13,892.20
  6. Step 6: Final answer
    x = 6,047.74

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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.