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Finding the Third Proportional to 18,395 and 39,705

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Solution

The third proportional to 18,395 and 39,705 is: 85,701.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,395 : 39,705 = 39,705 : x
  2. Step 2: Convert to fraction form
    18,395/39,705 = 39,705/x
  3. Step 3: Cross multiply
    18,395x = 39,705 × 39,705
  4. Step 4: Simplify right side
    18,395x = 1,576,487,025
  5. Step 5: Solve for x
    x = 1,576,487,025/18,395
  6. Step 6: Final answer
    x = 85,701.93

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.