Home / 31,826.80-43,921.96-17,680.64

Finding the Fourth Proportional to 31,826.80, 43,921.96 and 17,680.64

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Solution

The fourth proportional to 31,826.80, 43,921.96 and 17,680.64 is: 24,399.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,826.80 : 43,921.96 = 17,680.64 : x
  2. Step 2: Convert to fraction form
    31,826.80/43,921.96 = 17,680.64/x
  3. Step 3: Cross multiply
    31,826.80x = 43,921.96 × 17,680.64
  4. Step 4: Simplify right side
    31,826.80x = 776,568,362.85
  5. Step 5: Solve for x
    x = 776,568,362.85/31,826.80
  6. Step 6: Final answer
    x = 24,399.83

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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.