Home / 39,804.44-54,930.56-21,899.61

Finding the Fourth Proportional to 39,804.44, 54,930.56 and 21,899.61

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Solution

The fourth proportional to 39,804.44, 54,930.56 and 21,899.61 is: 30,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,804.44 : 54,930.56 = 21,899.61 : x
  2. Step 2: Convert to fraction form
    39,804.44/54,930.56 = 21,899.61/x
  3. Step 3: Cross multiply
    39,804.44x = 54,930.56 × 21,899.61
  4. Step 4: Simplify right side
    39,804.44x = 1,202,957,731.58
  5. Step 5: Solve for x
    x = 1,202,957,731.58/39,804.44
  6. Step 6: Final answer
    x = 30,221.70

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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.