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Finding the Third Proportional to 18,819 and 25,839

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Solution

The third proportional to 18,819 and 25,839 is: 35,477.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819 : 25,839 = 25,839 : x
  2. Step 2: Convert to fraction form
    18,819/25,839 = 25,839/x
  3. Step 3: Cross multiply
    18,819x = 25,839 × 25,839
  4. Step 4: Simplify right side
    18,819x = 667,653,921
  5. Step 5: Solve for x
    x = 667,653,921/18,819
  6. Step 6: Final answer
    x = 35,477.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.