Home / 20,255.59-27,986.97-14,579.11

Finding the Fourth Proportional to 20,255.59, 27,986.97 and 14,579.11

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Solution

The fourth proportional to 20,255.59, 27,986.97 and 14,579.11 is: 20,143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.59 : 27,986.97 = 14,579.11 : x
  2. Step 2: Convert to fraction form
    20,255.59/27,986.97 = 14,579.11/x
  3. Step 3: Cross multiply
    20,255.59x = 27,986.97 × 14,579.11
  4. Step 4: Simplify right side
    20,255.59x = 408,025,114.20
  5. Step 5: Solve for x
    x = 408,025,114.20/20,255.59
  6. Step 6: Final answer
    x = 20,143.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.