Home / 28,542.82-39,388.11-15,796.54

Finding the Fourth Proportional to 28,542.82, 39,388.11 and 15,796.54

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Solution

The fourth proportional to 28,542.82, 39,388.11 and 15,796.54 is: 21,798.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.82 : 39,388.11 = 15,796.54 : x
  2. Step 2: Convert to fraction form
    28,542.82/39,388.11 = 15,796.54/x
  3. Step 3: Cross multiply
    28,542.82x = 39,388.11 × 15,796.54
  4. Step 4: Simplify right side
    28,542.82x = 622,195,923.03
  5. Step 5: Solve for x
    x = 622,195,923.03/28,542.82
  6. Step 6: Final answer
    x = 21,798.69

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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.