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Finding the Third Proportional to 18,998 and 28,341

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Solution

The third proportional to 18,998 and 28,341 is: 42,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998 : 28,341 = 28,341 : x
  2. Step 2: Convert to fraction form
    18,998/28,341 = 28,341/x
  3. Step 3: Cross multiply
    18,998x = 28,341 × 28,341
  4. Step 4: Simplify right side
    18,998x = 803,212,281
  5. Step 5: Solve for x
    x = 803,212,281/18,998
  6. Step 6: Final answer
    x = 42,278.78

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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.