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Finding the Third Proportional to 19,150 and 28,609

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Solution

The third proportional to 19,150 and 28,609 is: 42,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150 : 28,609 = 28,609 : x
  2. Step 2: Convert to fraction form
    19,150/28,609 = 28,609/x
  3. Step 3: Cross multiply
    19,150x = 28,609 × 28,609
  4. Step 4: Simplify right side
    19,150x = 818,474,881
  5. Step 5: Solve for x
    x = 818,474,881/19,150
  6. Step 6: Final answer
    x = 42,740.20

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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.