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Finding the Third Proportional to 18,328 and 39,248

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Solution

The third proportional to 18,328 and 39,248 is: 84,046.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,328 : 39,248 = 39,248 : x
  2. Step 2: Convert to fraction form
    18,328/39,248 = 39,248/x
  3. Step 3: Cross multiply
    18,328x = 39,248 × 39,248
  4. Step 4: Simplify right side
    18,328x = 1,540,405,504
  5. Step 5: Solve for x
    x = 1,540,405,504/18,328
  6. Step 6: Final answer
    x = 84,046.57

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.