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Finding the Third Proportional to 20,697 and 43,859

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Solution

The third proportional to 20,697 and 43,859 is: 92,941.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697 : 43,859 = 43,859 : x
  2. Step 2: Convert to fraction form
    20,697/43,859 = 43,859/x
  3. Step 3: Cross multiply
    20,697x = 43,859 × 43,859
  4. Step 4: Simplify right side
    20,697x = 1,923,611,881
  5. Step 5: Solve for x
    x = 1,923,611,881/20,697
  6. Step 6: Final answer
    x = 92,941.58

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.