Home / 28,296.44-39,027.18-20,739.92

Finding the Fourth Proportional to 28,296.44, 39,027.18 and 20,739.92

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Solution

The fourth proportional to 28,296.44, 39,027.18 and 20,739.92 is: 28,605.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296.44 : 39,027.18 = 20,739.92 : x
  2. Step 2: Convert to fraction form
    28,296.44/39,027.18 = 20,739.92/x
  3. Step 3: Cross multiply
    28,296.44x = 39,027.18 × 20,739.92
  4. Step 4: Simplify right side
    28,296.44x = 809,420,591.03
  5. Step 5: Solve for x
    x = 809,420,591.03/28,296.44
  6. Step 6: Final answer
    x = 28,605.03

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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.