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Finding the Third Proportional to 19,018.13 and 40,902.75

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Solution

The third proportional to 19,018.13 and 40,902.75 is: 87,970.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.13 : 40,902.75 = 40,902.75 : x
  2. Step 2: Convert to fraction form
    19,018.13/40,902.75 = 40,902.75/x
  3. Step 3: Cross multiply
    19,018.13x = 40,902.75 × 40,902.75
  4. Step 4: Simplify right side
    19,018.13x = 1,673,034,957.56
  5. Step 5: Solve for x
    x = 1,673,034,957.56/19,018.13
  6. Step 6: Final answer
    x = 87,970.55

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.