Home / 28,766.82-43,152.57-7,990.32

Finding the Fourth Proportional to 28,766.82, 43,152.57 and 7,990.32

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Solution

The fourth proportional to 28,766.82, 43,152.57 and 7,990.32 is: 11,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,766.82 : 43,152.57 = 7,990.32 : x
  2. Step 2: Convert to fraction form
    28,766.82/43,152.57 = 7,990.32/x
  3. Step 3: Cross multiply
    28,766.82x = 43,152.57 × 7,990.32
  4. Step 4: Simplify right side
    28,766.82x = 344,802,843.12
  5. Step 5: Solve for x
    x = 344,802,843.12/28,766.82
  6. Step 6: Final answer
    x = 11,986.13

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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.