Home / 18,211.32-27,318.94-5,731.72

Finding the Fourth Proportional to 18,211.32, 27,318.94 and 5,731.72

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Solution

The fourth proportional to 18,211.32, 27,318.94 and 5,731.72 is: 8,598.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.32 : 27,318.94 = 5,731.72 : x
  2. Step 2: Convert to fraction form
    18,211.32/27,318.94 = 5,731.72/x
  3. Step 3: Cross multiply
    18,211.32x = 27,318.94 × 5,731.72
  4. Step 4: Simplify right side
    18,211.32x = 156,584,432.15
  5. Step 5: Solve for x
    x = 156,584,432.15/18,211.32
  6. Step 6: Final answer
    x = 8,598.19

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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.