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Finding the Fourth Proportional to 18,244.31, 27,395.12 and 10,881.61

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Solution

The fourth proportional to 18,244.31, 27,395.12 and 10,881.61 is: 16,339.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,244.31 : 27,395.12 = 10,881.61 : x
  2. Step 2: Convert to fraction form
    18,244.31/27,395.12 = 10,881.61/x
  3. Step 3: Cross multiply
    18,244.31x = 27,395.12 × 10,881.61
  4. Step 4: Simplify right side
    18,244.31x = 298,102,957.34
  5. Step 5: Solve for x
    x = 298,102,957.34/18,244.31
  6. Step 6: Final answer
    x = 16,339.50

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1.5x scale

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.