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Finding the Third Proportional to 18,074 and 38,658

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Solution

The third proportional to 18,074 and 38,658 is: 82,684.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,074 : 38,658 = 38,658 : x
  2. Step 2: Convert to fraction form
    18,074/38,658 = 38,658/x
  3. Step 3: Cross multiply
    18,074x = 38,658 × 38,658
  4. Step 4: Simplify right side
    18,074x = 1,494,440,964
  5. Step 5: Solve for x
    x = 1,494,440,964/18,074
  6. Step 6: Final answer
    x = 82,684.57

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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.