Home / 20,850.97-28,767.19-11,892.03

Finding the Fourth Proportional to 20,850.97, 28,767.19 and 11,892.03

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Solution

The fourth proportional to 20,850.97, 28,767.19 and 11,892.03 is: 16,406.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.97 : 28,767.19 = 11,892.03 : x
  2. Step 2: Convert to fraction form
    20,850.97/28,767.19 = 11,892.03/x
  3. Step 3: Cross multiply
    20,850.97x = 28,767.19 × 11,892.03
  4. Step 4: Simplify right side
    20,850.97x = 342,100,286.50
  5. Step 5: Solve for x
    x = 342,100,286.50/20,850.97
  6. Step 6: Final answer
    x = 16,406.92

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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.