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Finding the Third Proportional to 13,989 and 27,269

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Solution

The third proportional to 13,989 and 27,269 is: 53,155.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989 : 27,269 = 27,269 : x
  2. Step 2: Convert to fraction form
    13,989/27,269 = 27,269/x
  3. Step 3: Cross multiply
    13,989x = 27,269 × 27,269
  4. Step 4: Simplify right side
    13,989x = 743,598,361
  5. Step 5: Solve for x
    x = 743,598,361/13,989
  6. Step 6: Final answer
    x = 53,155.93

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.