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Finding the Fourth Proportional to 18,292.70, 27,436.22 and 5,811.10

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Solution

The fourth proportional to 18,292.70, 27,436.22 and 5,811.10 is: 8,715.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.70 : 27,436.22 = 5,811.10 : x
  2. Step 2: Convert to fraction form
    18,292.70/27,436.22 = 5,811.10/x
  3. Step 3: Cross multiply
    18,292.70x = 27,436.22 × 5,811.10
  4. Step 4: Simplify right side
    18,292.70x = 159,434,618.04
  5. Step 5: Solve for x
    x = 159,434,618.04/18,292.70
  6. Step 6: Final answer
    x = 8,715.75

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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.