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Finding the Third Proportional to 18,956 and 39,461

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Solution

The third proportional to 18,956 and 39,461 is: 82,146.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956 : 39,461 = 39,461 : x
  2. Step 2: Convert to fraction form
    18,956/39,461 = 39,461/x
  3. Step 3: Cross multiply
    18,956x = 39,461 × 39,461
  4. Step 4: Simplify right side
    18,956x = 1,557,170,521
  5. Step 5: Solve for x
    x = 1,557,170,521/18,956
  6. Step 6: Final answer
    x = 82,146.58

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.