Home / 20,247.36-27,940.68-11,863.68

Finding the Fourth Proportional to 20,247.36, 27,940.68 and 11,863.68

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Solution

The fourth proportional to 20,247.36, 27,940.68 and 11,863.68 is: 16,371.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.36 : 27,940.68 = 11,863.68 : x
  2. Step 2: Convert to fraction form
    20,247.36/27,940.68 = 11,863.68/x
  3. Step 3: Cross multiply
    20,247.36x = 27,940.68 × 11,863.68
  4. Step 4: Simplify right side
    20,247.36x = 331,479,286.50
  5. Step 5: Solve for x
    x = 331,479,286.50/20,247.36
  6. Step 6: Final answer
    x = 16,371.48

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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.