Home / 20,133.41-30,190.39-7,474.44

Finding the Fourth Proportional to 20,133.41, 30,190.39 and 7,474.44

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Solution

The fourth proportional to 20,133.41, 30,190.39 and 7,474.44 is: 11,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.41 : 30,190.39 = 7,474.44 : x
  2. Step 2: Convert to fraction form
    20,133.41/30,190.39 = 7,474.44/x
  3. Step 3: Cross multiply
    20,133.41x = 30,190.39 × 7,474.44
  4. Step 4: Simplify right side
    20,133.41x = 225,656,239.95
  5. Step 5: Solve for x
    x = 225,656,239.95/20,133.41
  6. Step 6: Final answer
    x = 11,208.05

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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.