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Finding the Third Proportional to 18,707.88 and 40,010

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Solution

The third proportional to 18,707.88 and 40,010 is: 85,568.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.88 : 40,010 = 40,010 : x
  2. Step 2: Convert to fraction form
    18,707.88/40,010 = 40,010/x
  3. Step 3: Cross multiply
    18,707.88x = 40,010 × 40,010
  4. Step 4: Simplify right side
    18,707.88x = 1,600,800,100
  5. Step 5: Solve for x
    x = 1,600,800,100/18,707.88
  6. Step 6: Final answer
    x = 85,568.25

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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.