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Finding the Third Proportional to 18,274 and 39,448

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Solution

The third proportional to 18,274 and 39,448 is: 85,156.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274 : 39,448 = 39,448 : x
  2. Step 2: Convert to fraction form
    18,274/39,448 = 39,448/x
  3. Step 3: Cross multiply
    18,274x = 39,448 × 39,448
  4. Step 4: Simplify right side
    18,274x = 1,556,144,704
  5. Step 5: Solve for x
    x = 1,556,144,704/18,274
  6. Step 6: Final answer
    x = 85,156.22

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.