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Finding the Third Proportional to 18,105 and 27,045.50

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Solution

The third proportional to 18,105 and 27,045.50 is: 40,400.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105 : 27,045.50 = 27,045.50 : x
  2. Step 2: Convert to fraction form
    18,105/27,045.50 = 27,045.50/x
  3. Step 3: Cross multiply
    18,105x = 27,045.50 × 27,045.50
  4. Step 4: Simplify right side
    18,105x = 731,459,070.25
  5. Step 5: Solve for x
    x = 731,459,070.25/18,105
  6. Step 6: Final answer
    x = 40,400.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.