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Finding the Third Proportional to 18,021 and 26,841

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Solution

The third proportional to 18,021 and 26,841 is: 39,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021 : 26,841 = 26,841 : x
  2. Step 2: Convert to fraction form
    18,021/26,841 = 26,841/x
  3. Step 3: Cross multiply
    18,021x = 26,841 × 26,841
  4. Step 4: Simplify right side
    18,021x = 720,439,281
  5. Step 5: Solve for x
    x = 720,439,281/18,021
  6. Step 6: Final answer
    x = 39,977.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.