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Finding the Third Proportional to 13,995 and 21,701

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Solution

The third proportional to 13,995 and 21,701 is: 33,650.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995 : 21,701 = 21,701 : x
  2. Step 2: Convert to fraction form
    13,995/21,701 = 21,701/x
  3. Step 3: Cross multiply
    13,995x = 21,701 × 21,701
  4. Step 4: Simplify right side
    13,995x = 470,933,401
  5. Step 5: Solve for x
    x = 470,933,401/13,995
  6. Step 6: Final answer
    x = 33,650.12

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.