Home / 28,591.89-42,887.88-11,942.85

Finding the Fourth Proportional to 28,591.89, 42,887.88 and 11,942.85

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Solution

The fourth proportional to 28,591.89, 42,887.88 and 11,942.85 is: 17,914.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591.89 : 42,887.88 = 11,942.85 : x
  2. Step 2: Convert to fraction form
    28,591.89/42,887.88 = 11,942.85/x
  3. Step 3: Cross multiply
    28,591.89x = 42,887.88 × 11,942.85
  4. Step 4: Simplify right side
    28,591.89x = 512,203,517.66
  5. Step 5: Solve for x
    x = 512,203,517.66/28,591.89
  6. Step 6: Final answer
    x = 17,914.29

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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.