Home / 28,890.87-43,337.93-8,112.75

Finding the Fourth Proportional to 28,890.87, 43,337.93 and 8,112.75

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Solution

The fourth proportional to 28,890.87, 43,337.93 and 8,112.75 is: 12,169.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.87 : 43,337.93 = 8,112.75 : x
  2. Step 2: Convert to fraction form
    28,890.87/43,337.93 = 8,112.75/x
  3. Step 3: Cross multiply
    28,890.87x = 43,337.93 × 8,112.75
  4. Step 4: Simplify right side
    28,890.87x = 351,589,751.04
  5. Step 5: Solve for x
    x = 351,589,751.04/28,890.87
  6. Step 6: Final answer
    x = 12,169.58

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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.