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Finding the Third Proportional to 17,615 and 26,439

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Solution

The third proportional to 17,615 and 26,439 is: 39,683.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,615 : 26,439 = 26,439 : x
  2. Step 2: Convert to fraction form
    17,615/26,439 = 26,439/x
  3. Step 3: Cross multiply
    17,615x = 26,439 × 26,439
  4. Step 4: Simplify right side
    17,615x = 699,020,721
  5. Step 5: Solve for x
    x = 699,020,721/17,615
  6. Step 6: Final answer
    x = 39,683.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.