Home / 20,240.28-27,920.97-16,467.66

Finding the Fourth Proportional to 20,240.28, 27,920.97 and 16,467.66

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Solution

The fourth proportional to 20,240.28, 27,920.97 and 16,467.66 is: 22,716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.28 : 27,920.97 = 16,467.66 : x
  2. Step 2: Convert to fraction form
    20,240.28/27,920.97 = 16,467.66/x
  3. Step 3: Cross multiply
    20,240.28x = 27,920.97 × 16,467.66
  4. Step 4: Simplify right side
    20,240.28x = 459,793,040.83
  5. Step 5: Solve for x
    x = 459,793,040.83/20,240.28
  6. Step 6: Final answer
    x = 22,716.73

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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.