Home / 20,960.91-28,926.18-11,529.54

Finding the Fourth Proportional to 20,960.91, 28,926.18 and 11,529.54

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Solution

The fourth proportional to 20,960.91, 28,926.18 and 11,529.54 is: 15,910.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.91 : 28,926.18 = 11,529.54 : x
  2. Step 2: Convert to fraction form
    20,960.91/28,926.18 = 11,529.54/x
  3. Step 3: Cross multiply
    20,960.91x = 28,926.18 × 11,529.54
  4. Step 4: Simplify right side
    20,960.91x = 333,505,549.36
  5. Step 5: Solve for x
    x = 333,505,549.36/20,960.91
  6. Step 6: Final answer
    x = 15,910.83

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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.