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Finding the Third Proportional to 20,220 and 43,361

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Solution

The third proportional to 20,220 and 43,361 is: 92,985.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220 : 43,361 = 43,361 : x
  2. Step 2: Convert to fraction form
    20,220/43,361 = 43,361/x
  3. Step 3: Cross multiply
    20,220x = 43,361 × 43,361
  4. Step 4: Simplify right side
    20,220x = 1,880,176,321
  5. Step 5: Solve for x
    x = 1,880,176,321/20,220
  6. Step 6: Final answer
    x = 92,985.97

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.