Home / 27,854.24-41,776.88-8,128.18

Finding the Fourth Proportional to 27,854.24, 41,776.88 and 8,128.18

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Solution

The fourth proportional to 27,854.24, 41,776.88 and 8,128.18 is: 12,190.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,854.24 : 41,776.88 = 8,128.18 : x
  2. Step 2: Convert to fraction form
    27,854.24/41,776.88 = 8,128.18/x
  3. Step 3: Cross multiply
    27,854.24x = 41,776.88 × 8,128.18
  4. Step 4: Simplify right side
    27,854.24x = 339,569,791.59
  5. Step 5: Solve for x
    x = 339,569,791.59/27,854.24
  6. Step 6: Final answer
    x = 12,190.96

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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.