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Finding the Third Proportional to 18,108 and 27,699.75

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Solution

The third proportional to 18,108 and 27,699.75 is: 42,372.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108 : 27,699.75 = 27,699.75 : x
  2. Step 2: Convert to fraction form
    18,108/27,699.75 = 27,699.75/x
  3. Step 3: Cross multiply
    18,108x = 27,699.75 × 27,699.75
  4. Step 4: Simplify right side
    18,108x = 767,276,150.06
  5. Step 5: Solve for x
    x = 767,276,150.06/18,108
  6. Step 6: Final answer
    x = 42,372.22

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.