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Finding the Fourth Proportional to 27,908.94, 41,863.41 and 8,187.57

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Solution

The fourth proportional to 27,908.94, 41,863.41 and 8,187.57 is: 12,281.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,908.94 : 41,863.41 = 8,187.57 : x
  2. Step 2: Convert to fraction form
    27,908.94/41,863.41 = 8,187.57/x
  3. Step 3: Cross multiply
    27,908.94x = 41,863.41 × 8,187.57
  4. Step 4: Simplify right side
    27,908.94x = 342,759,599.81
  5. Step 5: Solve for x
    x = 342,759,599.81/27,908.94
  6. Step 6: Final answer
    x = 12,281.36

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1.5x scale

Why These Related Problems?

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