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Finding the Fourth Proportional to 18,282.95, 27,403.70 and 8,401.81

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Solution

The fourth proportional to 18,282.95, 27,403.70 and 8,401.81 is: 12,593.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,282.95 : 27,403.70 = 8,401.81 : x
  2. Step 2: Convert to fraction form
    18,282.95/27,403.70 = 8,401.81/x
  3. Step 3: Cross multiply
    18,282.95x = 27,403.70 × 8,401.81
  4. Step 4: Simplify right side
    18,282.95x = 230,240,680.70
  5. Step 5: Solve for x
    x = 230,240,680.70/18,282.95
  6. Step 6: Final answer
    x = 12,593.19

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.