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Finding the Third Proportional to 18,875 and 40,687

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Solution

The third proportional to 18,875 and 40,687 is: 87,705.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875 : 40,687 = 40,687 : x
  2. Step 2: Convert to fraction form
    18,875/40,687 = 40,687/x
  3. Step 3: Cross multiply
    18,875x = 40,687 × 40,687
  4. Step 4: Simplify right side
    18,875x = 1,655,431,969
  5. Step 5: Solve for x
    x = 1,655,431,969/18,875
  6. Step 6: Final answer
    x = 87,705.00

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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.