Home / 29,144.22-43,739.20-20,321.70

Finding the Fourth Proportional to 29,144.22, 43,739.20 and 20,321.70

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Solution

The fourth proportional to 29,144.22, 43,739.20 and 20,321.70 is: 30,498.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,144.22 : 43,739.20 = 20,321.70 : x
  2. Step 2: Convert to fraction form
    29,144.22/43,739.20 = 20,321.70/x
  3. Step 3: Cross multiply
    29,144.22x = 43,739.20 × 20,321.70
  4. Step 4: Simplify right side
    29,144.22x = 888,854,900.64
  5. Step 5: Solve for x
    x = 888,854,900.64/29,144.22
  6. Step 6: Final answer
    x = 30,498.50

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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.