Home / 22,660.80-31,201.92-18,837.60

Finding the Fourth Proportional to 22,660.80, 31,201.92 and 18,837.60

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Solution

The fourth proportional to 22,660.80, 31,201.92 and 18,837.60 is: 25,937.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.80 : 31,201.92 = 18,837.60 : x
  2. Step 2: Convert to fraction form
    22,660.80/31,201.92 = 18,837.60/x
  3. Step 3: Cross multiply
    22,660.80x = 31,201.92 × 18,837.60
  4. Step 4: Simplify right side
    22,660.80x = 587,769,288.19
  5. Step 5: Solve for x
    x = 587,769,288.19/22,660.80
  6. Step 6: Final answer
    x = 25,937.71

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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.