Home / 28,721.25-43,084.31-7,944.75

Finding the Fourth Proportional to 28,721.25, 43,084.31 and 7,944.75

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Solution

The fourth proportional to 28,721.25, 43,084.31 and 7,944.75 is: 11,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.25 : 43,084.31 = 7,944.75 : x
  2. Step 2: Convert to fraction form
    28,721.25/43,084.31 = 7,944.75/x
  3. Step 3: Cross multiply
    28,721.25x = 43,084.31 × 7,944.75
  4. Step 4: Simplify right side
    28,721.25x = 342,294,032.15
  5. Step 5: Solve for x
    x = 342,294,032.15/28,721.25
  6. Step 6: Final answer
    x = 11,917.80

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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.