Home / 22,262.38-30,724.80-13,309.78

Finding the Fourth Proportional to 22,262.38, 30,724.80 and 13,309.78

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Solution

The fourth proportional to 22,262.38, 30,724.80 and 13,309.78 is: 18,369.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,262.38 : 30,724.80 = 13,309.78 : x
  2. Step 2: Convert to fraction form
    22,262.38/30,724.80 = 13,309.78/x
  3. Step 3: Cross multiply
    22,262.38x = 30,724.80 × 13,309.78
  4. Step 4: Simplify right side
    22,262.38x = 408,940,328.54
  5. Step 5: Solve for x
    x = 408,940,328.54/22,262.38
  6. Step 6: Final answer
    x = 18,369.12

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1.5x scale

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.