Home / 43,863.12-65,793.60-13,879.44

Finding the Fourth Proportional to 43,863.12, 65,793.60 and 13,879.44

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Solution

The fourth proportional to 43,863.12, 65,793.60 and 13,879.44 is: 20,818.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,863.12 : 65,793.60 = 13,879.44 : x
  2. Step 2: Convert to fraction form
    43,863.12/65,793.60 = 13,879.44/x
  3. Step 3: Cross multiply
    43,863.12x = 65,793.60 × 13,879.44
  4. Step 4: Simplify right side
    43,863.12x = 913,178,323.58
  5. Step 5: Solve for x
    x = 913,178,323.58/43,863.12
  6. Step 6: Final answer
    x = 20,818.82

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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.