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Finding the Fourth Proportional to 18,340.32, 27,510.48 and 4,489.32

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Solution

The fourth proportional to 18,340.32, 27,510.48 and 4,489.32 is: 6,733.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.32 : 27,510.48 = 4,489.32 : x
  2. Step 2: Convert to fraction form
    18,340.32/27,510.48 = 4,489.32/x
  3. Step 3: Cross multiply
    18,340.32x = 27,510.48 × 4,489.32
  4. Step 4: Simplify right side
    18,340.32x = 123,503,348.07
  5. Step 5: Solve for x
    x = 123,503,348.07/18,340.32
  6. Step 6: Final answer
    x = 6,733.98

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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.