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Finding the Third Proportional to 15,290 and 19,159

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Solution

The third proportional to 15,290 and 19,159 is: 24,007.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290 : 19,159 = 19,159 : x
  2. Step 2: Convert to fraction form
    15,290/19,159 = 19,159/x
  3. Step 3: Cross multiply
    15,290x = 19,159 × 19,159
  4. Step 4: Simplify right side
    15,290x = 367,067,281
  5. Step 5: Solve for x
    x = 367,067,281/15,290
  6. Step 6: Final answer
    x = 24,007.02

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Why These Related Problems?

These problems maintain the same ratio (1.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.