Home / 36,121.76-49,850.40-20,208.96

Finding the Fourth Proportional to 36,121.76, 49,850.40 and 20,208.96

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Solution

The fourth proportional to 36,121.76, 49,850.40 and 20,208.96 is: 27,889.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,121.76 : 49,850.40 = 20,208.96 : x
  2. Step 2: Convert to fraction form
    36,121.76/49,850.40 = 20,208.96/x
  3. Step 3: Cross multiply
    36,121.76x = 49,850.40 × 20,208.96
  4. Step 4: Simplify right side
    36,121.76x = 1,007,424,739.58
  5. Step 5: Solve for x
    x = 1,007,424,739.58/36,121.76
  6. Step 6: Final answer
    x = 27,889.69

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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.