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Finding the Third Proportional to 18,584 and 40,120

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Solution

The third proportional to 18,584 and 40,120 is: 86,612.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,584 : 40,120 = 40,120 : x
  2. Step 2: Convert to fraction form
    18,584/40,120 = 40,120/x
  3. Step 3: Cross multiply
    18,584x = 40,120 × 40,120
  4. Step 4: Simplify right side
    18,584x = 1,609,614,400
  5. Step 5: Solve for x
    x = 1,609,614,400/18,584
  6. Step 6: Final answer
    x = 86,612.91

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.