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Finding the Third Proportional to 15,340 and 20,212

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Solution

The third proportional to 15,340 and 20,212 is: 26,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,340 : 20,212 = 20,212 : x
  2. Step 2: Convert to fraction form
    15,340/20,212 = 20,212/x
  3. Step 3: Cross multiply
    15,340x = 20,212 × 20,212
  4. Step 4: Simplify right side
    15,340x = 408,524,944
  5. Step 5: Solve for x
    x = 408,524,944/15,340
  6. Step 6: Final answer
    x = 26,631.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.