Home / 20,166.37-30,245.60-11,727.79

Finding the Fourth Proportional to 20,166.37, 30,245.60 and 11,727.79

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Solution

The fourth proportional to 20,166.37, 30,245.60 and 11,727.79 is: 17,589.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.37 : 30,245.60 = 11,727.79 : x
  2. Step 2: Convert to fraction form
    20,166.37/30,245.60 = 11,727.79/x
  3. Step 3: Cross multiply
    20,166.37x = 30,245.60 × 11,727.79
  4. Step 4: Simplify right side
    20,166.37x = 354,713,998.93
  5. Step 5: Solve for x
    x = 354,713,998.93/20,166.37
  6. Step 6: Final answer
    x = 17,589.38

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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.