Home / 20,204.05-27,879.70-11,706.50

Finding the Fourth Proportional to 20,204.05, 27,879.70 and 11,706.50

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Solution

The fourth proportional to 20,204.05, 27,879.70 and 11,706.50 is: 16,153.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.05 : 27,879.70 = 11,706.50 : x
  2. Step 2: Convert to fraction form
    20,204.05/27,879.70 = 11,706.50/x
  3. Step 3: Cross multiply
    20,204.05x = 27,879.70 × 11,706.50
  4. Step 4: Simplify right side
    20,204.05x = 326,373,568.65
  5. Step 5: Solve for x
    x = 326,373,568.65/20,204.05
  6. Step 6: Final answer
    x = 16,153.87

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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.