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Finding the Third Proportional to 8,429 and 18,352

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Solution

The third proportional to 8,429 and 18,352 is: 39,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429 : 18,352 = 18,352 : x
  2. Step 2: Convert to fraction form
    8,429/18,352 = 18,352/x
  3. Step 3: Cross multiply
    8,429x = 18,352 × 18,352
  4. Step 4: Simplify right side
    8,429x = 336,795,904
  5. Step 5: Solve for x
    x = 336,795,904/8,429
  6. Step 6: Final answer
    x = 39,956.80

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.