Home / 20,268.06-30,400.93-5,475.86

Finding the Fourth Proportional to 20,268.06, 30,400.93 and 5,475.86

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Solution

The fourth proportional to 20,268.06, 30,400.93 and 5,475.86 is: 8,213.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,268.06 : 30,400.93 = 5,475.86 : x
  2. Step 2: Convert to fraction form
    20,268.06/30,400.93 = 5,475.86/x
  3. Step 3: Cross multiply
    20,268.06x = 30,400.93 × 5,475.86
  4. Step 4: Simplify right side
    20,268.06x = 166,471,236.55
  5. Step 5: Solve for x
    x = 166,471,236.55/20,268.06
  6. Step 6: Final answer
    x = 8,213.48

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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.