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Finding the Third Proportional to 18,786.94 and 40,543.03

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Solution

The third proportional to 18,786.94 and 40,543.03 is: 87,493.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.94 : 40,543.03 = 40,543.03 : x
  2. Step 2: Convert to fraction form
    18,786.94/40,543.03 = 40,543.03/x
  3. Step 3: Cross multiply
    18,786.94x = 40,543.03 × 40,543.03
  4. Step 4: Simplify right side
    18,786.94x = 1,643,737,382.94
  5. Step 5: Solve for x
    x = 1,643,737,382.94/18,786.94
  6. Step 6: Final answer
    x = 87,493.63

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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.