Home / 20,116.41-27,760.83-12,163.95

Finding the Fourth Proportional to 20,116.41, 27,760.83 and 12,163.95

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Solution

The fourth proportional to 20,116.41, 27,760.83 and 12,163.95 is: 16,786.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.41 : 27,760.83 = 12,163.95 : x
  2. Step 2: Convert to fraction form
    20,116.41/27,760.83 = 12,163.95/x
  3. Step 3: Cross multiply
    20,116.41x = 27,760.83 × 12,163.95
  4. Step 4: Simplify right side
    20,116.41x = 337,681,348.08
  5. Step 5: Solve for x
    x = 337,681,348.08/20,116.41
  6. Step 6: Final answer
    x = 16,786.36

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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.