Home / 20,381.18-30,566.64-7,896.92

Finding the Fourth Proportional to 20,381.18, 30,566.64 and 7,896.92

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Solution

The fourth proportional to 20,381.18, 30,566.64 and 7,896.92 is: 11,843.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.18 : 30,566.64 = 7,896.92 : x
  2. Step 2: Convert to fraction form
    20,381.18/30,566.64 = 7,896.92/x
  3. Step 3: Cross multiply
    20,381.18x = 30,566.64 × 7,896.92
  4. Step 4: Simplify right side
    20,381.18x = 241,382,310.75
  5. Step 5: Solve for x
    x = 241,382,310.75/20,381.18
  6. Step 6: Final answer
    x = 11,843.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.