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Finding the Third Proportional to 19,822 and 41,286

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Solution

The third proportional to 19,822 and 41,286 is: 85,992.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,822 : 41,286 = 41,286 : x
  2. Step 2: Convert to fraction form
    19,822/41,286 = 41,286/x
  3. Step 3: Cross multiply
    19,822x = 41,286 × 41,286
  4. Step 4: Simplify right side
    19,822x = 1,704,533,796
  5. Step 5: Solve for x
    x = 1,704,533,796/19,822
  6. Step 6: Final answer
    x = 85,992.02

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.