Home / 28,236.06-42,364.49-11,591.64

Finding the Fourth Proportional to 28,236.06, 42,364.49 and 11,591.64

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Solution

The fourth proportional to 28,236.06, 42,364.49 and 11,591.64 is: 17,391.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.06 : 42,364.49 = 11,591.64 : x
  2. Step 2: Convert to fraction form
    28,236.06/42,364.49 = 11,591.64/x
  3. Step 3: Cross multiply
    28,236.06x = 42,364.49 × 11,591.64
  4. Step 4: Simplify right side
    28,236.06x = 491,073,858.91
  5. Step 5: Solve for x
    x = 491,073,858.91/28,236.06
  6. Step 6: Final answer
    x = 17,391.73

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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.