Home / 20,250.20-27,940.41-12,290.94

Finding the Fourth Proportional to 20,250.20, 27,940.41 and 12,290.94

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Solution

The fourth proportional to 20,250.20, 27,940.41 and 12,290.94 is: 16,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.20 : 27,940.41 = 12,290.94 : x
  2. Step 2: Convert to fraction form
    20,250.20/27,940.41 = 12,290.94/x
  3. Step 3: Cross multiply
    20,250.20x = 27,940.41 × 12,290.94
  4. Step 4: Simplify right side
    20,250.20x = 343,413,902.89
  5. Step 5: Solve for x
    x = 343,413,902.89/20,250.20
  6. Step 6: Final answer
    x = 16,958.54

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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.