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Finding the Third Proportional to 21,198 and 33,560

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Solution

The third proportional to 21,198 and 33,560 is: 53,131.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198 : 33,560 = 33,560 : x
  2. Step 2: Convert to fraction form
    21,198/33,560 = 33,560/x
  3. Step 3: Cross multiply
    21,198x = 33,560 × 33,560
  4. Step 4: Simplify right side
    21,198x = 1,126,273,600
  5. Step 5: Solve for x
    x = 1,126,273,600/21,198
  6. Step 6: Final answer
    x = 53,131.13

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.