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Finding the Third Proportional to 15,979 and 17,437

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Solution

The third proportional to 15,979 and 17,437 is: 19,028.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979 : 17,437 = 17,437 : x
  2. Step 2: Convert to fraction form
    15,979/17,437 = 17,437/x
  3. Step 3: Cross multiply
    15,979x = 17,437 × 17,437
  4. Step 4: Simplify right side
    15,979x = 304,048,969
  5. Step 5: Solve for x
    x = 304,048,969/15,979
  6. Step 6: Final answer
    x = 19,028.03

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.