Home / 33,310.40-49,900.80-20,123.60

Finding the Fourth Proportional to 33,310.40, 49,900.80 and 20,123.60

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Solution

The fourth proportional to 33,310.40, 49,900.80 and 20,123.60 is: 30,146.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,310.40 : 49,900.80 = 20,123.60 : x
  2. Step 2: Convert to fraction form
    33,310.40/49,900.80 = 20,123.60/x
  3. Step 3: Cross multiply
    33,310.40x = 49,900.80 × 20,123.60
  4. Step 4: Simplify right side
    33,310.40x = 1,004,183,738.88
  5. Step 5: Solve for x
    x = 1,004,183,738.88/33,310.40
  6. Step 6: Final answer
    x = 30,146.25

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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.