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Finding the Third Proportional to 20,394 and 30,212

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Solution

The third proportional to 20,394 and 30,212 is: 44,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,394 : 30,212 = 30,212 : x
  2. Step 2: Convert to fraction form
    20,394/30,212 = 30,212/x
  3. Step 3: Cross multiply
    20,394x = 30,212 × 30,212
  4. Step 4: Simplify right side
    20,394x = 912,764,944
  5. Step 5: Solve for x
    x = 912,764,944/20,394
  6. Step 6: Final answer
    x = 44,756.54

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.