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Finding the Third Proportional to 17,856 and 38,358

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Solution

The third proportional to 17,856 and 38,358 is: 82,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,856 : 38,358 = 38,358 : x
  2. Step 2: Convert to fraction form
    17,856/38,358 = 38,358/x
  3. Step 3: Cross multiply
    17,856x = 38,358 × 38,358
  4. Step 4: Simplify right side
    17,856x = 1,471,336,164
  5. Step 5: Solve for x
    x = 1,471,336,164/17,856
  6. Step 6: Final answer
    x = 82,400.10

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.