Home / 20,233.29-27,919.94-11,279.95

Finding the Fourth Proportional to 20,233.29, 27,919.94 and 11,279.95

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Solution

The fourth proportional to 20,233.29, 27,919.94 and 11,279.95 is: 15,565.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.29 : 27,919.94 = 11,279.95 : x
  2. Step 2: Convert to fraction form
    20,233.29/27,919.94 = 11,279.95/x
  3. Step 3: Cross multiply
    20,233.29x = 27,919.94 × 11,279.95
  4. Step 4: Simplify right side
    20,233.29x = 314,935,527.20
  5. Step 5: Solve for x
    x = 314,935,527.20/20,233.29
  6. Step 6: Final answer
    x = 15,565.22

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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.