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Finding the Fourth Proportional to 18,025.75, 27,038.63 and 5,713.75

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Solution

The fourth proportional to 18,025.75, 27,038.63 and 5,713.75 is: 8,570.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,025.75 : 27,038.63 = 5,713.75 : x
  2. Step 2: Convert to fraction form
    18,025.75/27,038.63 = 5,713.75/x
  3. Step 3: Cross multiply
    18,025.75x = 27,038.63 × 5,713.75
  4. Step 4: Simplify right side
    18,025.75x = 154,491,972.16
  5. Step 5: Solve for x
    x = 154,491,972.16/18,025.75
  6. Step 6: Final answer
    x = 8,570.63

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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.