Home / 20,194.20-27,863.93-12,231.81

Finding the Fourth Proportional to 20,194.20, 27,863.93 and 12,231.81

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Solution

The fourth proportional to 20,194.20, 27,863.93 and 12,231.81 is: 16,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,194.20 : 27,863.93 = 12,231.81 : x
  2. Step 2: Convert to fraction form
    20,194.20/27,863.93 = 12,231.81/x
  3. Step 3: Cross multiply
    20,194.20x = 27,863.93 × 12,231.81
  4. Step 4: Simplify right side
    20,194.20x = 340,826,328.19
  5. Step 5: Solve for x
    x = 340,826,328.19/20,194.20
  6. Step 6: Final answer
    x = 16,877.44

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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.