Home / 20,481.54-28,268.13-19,546.61

Finding the Fourth Proportional to 20,481.54, 28,268.13 and 19,546.61

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Solution

The fourth proportional to 20,481.54, 28,268.13 and 19,546.61 is: 26,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,481.54 : 28,268.13 = 19,546.61 : x
  2. Step 2: Convert to fraction form
    20,481.54/28,268.13 = 19,546.61/x
  3. Step 3: Cross multiply
    20,481.54x = 28,268.13 × 19,546.61
  4. Step 4: Simplify right side
    20,481.54x = 552,545,971.20
  5. Step 5: Solve for x
    x = 552,545,971.20/20,481.54
  6. Step 6: Final answer
    x = 26,977.76

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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.