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Finding the Third Proportional to 17,738 and 19,394

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Solution

The third proportional to 17,738 and 19,394 is: 21,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,738 : 19,394 = 19,394 : x
  2. Step 2: Convert to fraction form
    17,738/19,394 = 19,394/x
  3. Step 3: Cross multiply
    17,738x = 19,394 × 19,394
  4. Step 4: Simplify right side
    17,738x = 376,127,236
  5. Step 5: Solve for x
    x = 376,127,236/17,738
  6. Step 6: Final answer
    x = 21,204.60

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.