Home / 20,633.52-28,474.49-11,680.83

Finding the Fourth Proportional to 20,633.52, 28,474.49 and 11,680.83

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Solution

The fourth proportional to 20,633.52, 28,474.49 and 11,680.83 is: 16,119.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.52 : 28,474.49 = 11,680.83 : x
  2. Step 2: Convert to fraction form
    20,633.52/28,474.49 = 11,680.83/x
  3. Step 3: Cross multiply
    20,633.52x = 28,474.49 × 11,680.83
  4. Step 4: Simplify right side
    20,633.52x = 332,605,618.62
  5. Step 5: Solve for x
    x = 332,605,618.62/20,633.52
  6. Step 6: Final answer
    x = 16,119.67

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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.