Home / 28,961.88-43,442.82-18,639.24

Finding the Fourth Proportional to 28,961.88, 43,442.82 and 18,639.24

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Solution

The fourth proportional to 28,961.88, 43,442.82 and 18,639.24 is: 27,958.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,961.88 : 43,442.82 = 18,639.24 : x
  2. Step 2: Convert to fraction form
    28,961.88/43,442.82 = 18,639.24/x
  3. Step 3: Cross multiply
    28,961.88x = 43,442.82 × 18,639.24
  4. Step 4: Simplify right side
    28,961.88x = 809,741,148.26
  5. Step 5: Solve for x
    x = 809,741,148.26/28,961.88
  6. Step 6: Final answer
    x = 27,958.86

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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.