Home / 18,260.56-27,318.78-13,831.02

Finding the Fourth Proportional to 18,260.56, 27,318.78 and 13,831.02

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Solution

The fourth proportional to 18,260.56, 27,318.78 and 13,831.02 is: 20,691.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,260.56 : 27,318.78 = 13,831.02 : x
  2. Step 2: Convert to fraction form
    18,260.56/27,318.78 = 13,831.02/x
  3. Step 3: Cross multiply
    18,260.56x = 27,318.78 × 13,831.02
  4. Step 4: Simplify right side
    18,260.56x = 377,846,592.56
  5. Step 5: Solve for x
    x = 377,846,592.56/18,260.56
  6. Step 6: Final answer
    x = 20,691.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.