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Finding the Third Proportional to 10,517 and 21,343

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Solution

The third proportional to 10,517 and 21,343 is: 43,313.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517 : 21,343 = 21,343 : x
  2. Step 2: Convert to fraction form
    10,517/21,343 = 21,343/x
  3. Step 3: Cross multiply
    10,517x = 21,343 × 21,343
  4. Step 4: Simplify right side
    10,517x = 455,523,649
  5. Step 5: Solve for x
    x = 455,523,649/10,517
  6. Step 6: Final answer
    x = 43,313.08

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.