Home / 20,664.54-28,517.16-11,233.14

Finding the Fourth Proportional to 20,664.54, 28,517.16 and 11,233.14

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Solution

The fourth proportional to 20,664.54, 28,517.16 and 11,233.14 is: 15,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.54 : 28,517.16 = 11,233.14 : x
  2. Step 2: Convert to fraction form
    20,664.54/28,517.16 = 11,233.14/x
  3. Step 3: Cross multiply
    20,664.54x = 28,517.16 × 11,233.14
  4. Step 4: Simplify right side
    20,664.54x = 320,337,250.68
  5. Step 5: Solve for x
    x = 320,337,250.68/20,664.54
  6. Step 6: Final answer
    x = 15,501.78

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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.