Home / 28,481.36-39,251.59-22,182.80

Finding the Fourth Proportional to 28,481.36, 39,251.59 and 22,182.80

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Solution

The fourth proportional to 28,481.36, 39,251.59 and 22,182.80 is: 30,571.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481.36 : 39,251.59 = 22,182.80 : x
  2. Step 2: Convert to fraction form
    28,481.36/39,251.59 = 22,182.80/x
  3. Step 3: Cross multiply
    28,481.36x = 39,251.59 × 22,182.80
  4. Step 4: Simplify right side
    28,481.36x = 870,709,918.94
  5. Step 5: Solve for x
    x = 870,709,918.94/28,481.36
  6. Step 6: Final answer
    x = 30,571.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.