Home / 43,853.10-65,789.46-20,466.78

Finding the Fourth Proportional to 43,853.10, 65,789.46 and 20,466.78

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Solution

The fourth proportional to 43,853.10, 65,789.46 and 20,466.78 is: 30,704.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,853.10 : 65,789.46 = 20,466.78 : x
  2. Step 2: Convert to fraction form
    43,853.10/65,789.46 = 20,466.78/x
  3. Step 3: Cross multiply
    43,853.10x = 65,789.46 × 20,466.78
  4. Step 4: Simplify right side
    43,853.10x = 1,346,498,404.14
  5. Step 5: Solve for x
    x = 1,346,498,404.14/43,853.10
  6. Step 6: Final answer
    x = 30,704.75

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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.