Home / 28,860.50-43,292.46-8,085.62

Finding the Fourth Proportional to 28,860.50, 43,292.46 and 8,085.62

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Solution

The fourth proportional to 28,860.50, 43,292.46 and 8,085.62 is: 12,128.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.50 : 43,292.46 = 8,085.62 : x
  2. Step 2: Convert to fraction form
    28,860.50/43,292.46 = 8,085.62/x
  3. Step 3: Cross multiply
    28,860.50x = 43,292.46 × 8,085.62
  4. Step 4: Simplify right side
    28,860.50x = 350,046,380.43
  5. Step 5: Solve for x
    x = 350,046,380.43/28,860.50
  6. Step 6: Final answer
    x = 12,128.91

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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.