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Finding the Third Proportional to 18,475 and 40,837

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Solution

The third proportional to 18,475 and 40,837 is: 90,265.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475 : 40,837 = 40,837 : x
  2. Step 2: Convert to fraction form
    18,475/40,837 = 40,837/x
  3. Step 3: Cross multiply
    18,475x = 40,837 × 40,837
  4. Step 4: Simplify right side
    18,475x = 1,667,660,569
  5. Step 5: Solve for x
    x = 1,667,660,569/18,475
  6. Step 6: Final answer
    x = 90,265.80

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.