Home / 38,198.80-57,298.94-13,239.67

Finding the Fourth Proportional to 38,198.80, 57,298.94 and 13,239.67

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Solution

The fourth proportional to 38,198.80, 57,298.94 and 13,239.67 is: 19,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,198.80 : 57,298.94 = 13,239.67 : x
  2. Step 2: Convert to fraction form
    38,198.80/57,298.94 = 13,239.67/x
  3. Step 3: Cross multiply
    38,198.80x = 57,298.94 × 13,239.67
  4. Step 4: Simplify right side
    38,198.80x = 758,619,056.95
  5. Step 5: Solve for x
    x = 758,619,056.95/38,198.80
  6. Step 6: Final answer
    x = 19,859.76

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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.