Home / 28,591.53-42,872.67-11,947.02

Finding the Fourth Proportional to 28,591.53, 42,872.67 and 11,947.02

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Solution

The fourth proportional to 28,591.53, 42,872.67 and 11,947.02 is: 17,914.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591.53 : 42,872.67 = 11,947.02 : x
  2. Step 2: Convert to fraction form
    28,591.53/42,872.67 = 11,947.02/x
  3. Step 3: Cross multiply
    28,591.53x = 42,872.67 × 11,947.02
  4. Step 4: Simplify right side
    28,591.53x = 512,200,645.94
  5. Step 5: Solve for x
    x = 512,200,645.94/28,591.53
  6. Step 6: Final answer
    x = 17,914.42

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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.