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Finding the Third Proportional to 17,984 and 39,512

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Solution

The third proportional to 17,984 and 39,512 is: 86,810.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,984 : 39,512 = 39,512 : x
  2. Step 2: Convert to fraction form
    17,984/39,512 = 39,512/x
  3. Step 3: Cross multiply
    17,984x = 39,512 × 39,512
  4. Step 4: Simplify right side
    17,984x = 1,561,198,144
  5. Step 5: Solve for x
    x = 1,561,198,144/17,984
  6. Step 6: Final answer
    x = 86,810.40

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.