Home / 20,204.29-27,881.85-11,251.90

Finding the Fourth Proportional to 20,204.29, 27,881.85 and 11,251.90

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Solution

The fourth proportional to 20,204.29, 27,881.85 and 11,251.90 is: 15,527.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.29 : 27,881.85 = 11,251.90 : x
  2. Step 2: Convert to fraction form
    20,204.29/27,881.85 = 11,251.90/x
  3. Step 3: Cross multiply
    20,204.29x = 27,881.85 × 11,251.90
  4. Step 4: Simplify right side
    20,204.29x = 313,723,788.02
  5. Step 5: Solve for x
    x = 313,723,788.02/20,204.29
  6. Step 6: Final answer
    x = 15,527.58

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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.