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Finding the Third Proportional to 19,000 and 28,393

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Solution

The third proportional to 19,000 and 28,393 is: 42,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000 : 28,393 = 28,393 : x
  2. Step 2: Convert to fraction form
    19,000/28,393 = 28,393/x
  3. Step 3: Cross multiply
    19,000x = 28,393 × 28,393
  4. Step 4: Simplify right side
    19,000x = 806,162,449
  5. Step 5: Solve for x
    x = 806,162,449/19,000
  6. Step 6: Final answer
    x = 42,429.60

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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.