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Finding the Third Proportional to 18,740 and 39,201

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Solution

The third proportional to 18,740 and 39,201 is: 82,002.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740 : 39,201 = 39,201 : x
  2. Step 2: Convert to fraction form
    18,740/39,201 = 39,201/x
  3. Step 3: Cross multiply
    18,740x = 39,201 × 39,201
  4. Step 4: Simplify right side
    18,740x = 1,536,718,401
  5. Step 5: Solve for x
    x = 1,536,718,401/18,740
  6. Step 6: Final answer
    x = 82,002.05

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.