Home / 28,860.38-43,292.21-8,085.50

Finding the Fourth Proportional to 28,860.38, 43,292.21 and 8,085.50

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Solution

The fourth proportional to 28,860.38, 43,292.21 and 8,085.50 is: 12,128.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.38 : 43,292.21 = 8,085.50 : x
  2. Step 2: Convert to fraction form
    28,860.38/43,292.21 = 8,085.50/x
  3. Step 3: Cross multiply
    28,860.38x = 43,292.21 × 8,085.50
  4. Step 4: Simplify right side
    28,860.38x = 350,039,163.96
  5. Step 5: Solve for x
    x = 350,039,163.96/28,860.38
  6. Step 6: Final answer
    x = 12,128.71

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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.