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Finding the Third Proportional to 19,000 and 28,760

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Solution

The third proportional to 19,000 and 28,760 is: 43,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000 : 28,760 = 28,760 : x
  2. Step 2: Convert to fraction form
    19,000/28,760 = 28,760/x
  3. Step 3: Cross multiply
    19,000x = 28,760 × 28,760
  4. Step 4: Simplify right side
    19,000x = 827,137,600
  5. Step 5: Solve for x
    x = 827,137,600/19,000
  6. Step 6: Final answer
    x = 43,533.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.