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Finding the Third Proportional to 18,187.98 and 39,579.57

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Solution

The third proportional to 18,187.98 and 39,579.57 is: 86,130.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.98 : 39,579.57 = 39,579.57 : x
  2. Step 2: Convert to fraction form
    18,187.98/39,579.57 = 39,579.57/x
  3. Step 3: Cross multiply
    18,187.98x = 39,579.57 × 39,579.57
  4. Step 4: Simplify right side
    18,187.98x = 1,566,542,695.34
  5. Step 5: Solve for x
    x = 1,566,542,695.34/18,187.98
  6. Step 6: Final answer
    x = 86,130.66

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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.