Home / 28,789.97-43,159.55-12,140.96

Finding the Fourth Proportional to 28,789.97, 43,159.55 and 12,140.96

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Solution

The fourth proportional to 28,789.97, 43,159.55 and 12,140.96 is: 18,200.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.97 : 43,159.55 = 12,140.96 : x
  2. Step 2: Convert to fraction form
    28,789.97/43,159.55 = 12,140.96/x
  3. Step 3: Cross multiply
    28,789.97x = 43,159.55 × 12,140.96
  4. Step 4: Simplify right side
    28,789.97x = 523,998,093.67
  5. Step 5: Solve for x
    x = 523,998,093.67/28,789.97
  6. Step 6: Final answer
    x = 18,200.72

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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.