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Finding the Third Proportional to 10,692 and 21,201.75

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Solution

The third proportional to 10,692 and 21,201.75 is: 42,042.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,692 : 21,201.75 = 21,201.75 : x
  2. Step 2: Convert to fraction form
    10,692/21,201.75 = 21,201.75/x
  3. Step 3: Cross multiply
    10,692x = 21,201.75 × 21,201.75
  4. Step 4: Simplify right side
    10,692x = 449,514,203.06
  5. Step 5: Solve for x
    x = 449,514,203.06/10,692
  6. Step 6: Final answer
    x = 42,042.11

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.