Home / 20,561.56-28,375.19-12,063.83

Finding the Fourth Proportional to 20,561.56, 28,375.19 and 12,063.83

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Solution

The fourth proportional to 20,561.56, 28,375.19 and 12,063.83 is: 16,648.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561.56 : 28,375.19 = 12,063.83 : x
  2. Step 2: Convert to fraction form
    20,561.56/28,375.19 = 12,063.83/x
  3. Step 3: Cross multiply
    20,561.56x = 28,375.19 × 12,063.83
  4. Step 4: Simplify right side
    20,561.56x = 342,313,468.38
  5. Step 5: Solve for x
    x = 342,313,468.38/20,561.56
  6. Step 6: Final answer
    x = 16,648.22

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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.