Home / 27,853.16-41,783.57-8,128.85

Finding the Fourth Proportional to 27,853.16, 41,783.57 and 8,128.85

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Solution

The fourth proportional to 27,853.16, 41,783.57 and 8,128.85 is: 12,194.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,853.16 : 41,783.57 = 8,128.85 : x
  2. Step 2: Convert to fraction form
    27,853.16/41,783.57 = 8,128.85/x
  3. Step 3: Cross multiply
    27,853.16x = 41,783.57 × 8,128.85
  4. Step 4: Simplify right side
    27,853.16x = 339,652,123.43
  5. Step 5: Solve for x
    x = 339,652,123.43/27,853.16
  6. Step 6: Final answer
    x = 12,194.39

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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.