Home / 19,121.54-28,662.60-13,843.48

Finding the Fourth Proportional to 19,121.54, 28,662.60 and 13,843.48

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Solution

The fourth proportional to 19,121.54, 28,662.60 and 13,843.48 is: 20,750.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.54 : 28,662.60 = 13,843.48 : x
  2. Step 2: Convert to fraction form
    19,121.54/28,662.60 = 13,843.48/x
  3. Step 3: Cross multiply
    19,121.54x = 28,662.60 × 13,843.48
  4. Step 4: Simplify right side
    19,121.54x = 396,789,986.54
  5. Step 5: Solve for x
    x = 396,789,986.54/19,121.54
  6. Step 6: Final answer
    x = 20,750.94

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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.