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Finding the Third Proportional to 18,445 and 40,017

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Solution

The third proportional to 18,445 and 40,017 is: 86,818.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445 : 40,017 = 40,017 : x
  2. Step 2: Convert to fraction form
    18,445/40,017 = 40,017/x
  3. Step 3: Cross multiply
    18,445x = 40,017 × 40,017
  4. Step 4: Simplify right side
    18,445x = 1,601,360,289
  5. Step 5: Solve for x
    x = 1,601,360,289/18,445
  6. Step 6: Final answer
    x = 86,818.12

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.