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Finding the Third Proportional to 21,801 and 25,035

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Solution

The third proportional to 21,801 and 25,035 is: 28,748.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,801 : 25,035 = 25,035 : x
  2. Step 2: Convert to fraction form
    21,801/25,035 = 25,035/x
  3. Step 3: Cross multiply
    21,801x = 25,035 × 25,035
  4. Step 4: Simplify right side
    21,801x = 626,751,225
  5. Step 5: Solve for x
    x = 626,751,225/21,801
  6. Step 6: Final answer
    x = 28,748.74

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.