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Finding the Third Proportional to 16,778 and 39,185

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Solution

The third proportional to 16,778 and 39,185 is: 91,516.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,778 : 39,185 = 39,185 : x
  2. Step 2: Convert to fraction form
    16,778/39,185 = 39,185/x
  3. Step 3: Cross multiply
    16,778x = 39,185 × 39,185
  4. Step 4: Simplify right side
    16,778x = 1,535,464,225
  5. Step 5: Solve for x
    x = 1,535,464,225/16,778
  6. Step 6: Final answer
    x = 91,516.52

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.