Home / 20,245.68-27,941.15-11,745.27

Finding the Fourth Proportional to 20,245.68, 27,941.15 and 11,745.27

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Solution

The fourth proportional to 20,245.68, 27,941.15 and 11,745.27 is: 16,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.68 : 27,941.15 = 11,745.27 : x
  2. Step 2: Convert to fraction form
    20,245.68/27,941.15 = 11,745.27/x
  3. Step 3: Cross multiply
    20,245.68x = 27,941.15 × 11,745.27
  4. Step 4: Simplify right side
    20,245.68x = 328,176,380.22
  5. Step 5: Solve for x
    x = 328,176,380.22/20,245.68
  6. Step 6: Final answer
    x = 16,209.70

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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.