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Finding the Third Proportional to 18,788 and 40,483

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Solution

The third proportional to 18,788 and 40,483 is: 87,229.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788 : 40,483 = 40,483 : x
  2. Step 2: Convert to fraction form
    18,788/40,483 = 40,483/x
  3. Step 3: Cross multiply
    18,788x = 40,483 × 40,483
  4. Step 4: Simplify right side
    18,788x = 1,638,873,289
  5. Step 5: Solve for x
    x = 1,638,873,289/18,788
  6. Step 6: Final answer
    x = 87,229.79

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.