Home / 19,310.44-28,958.20-8,222.36

Finding the Fourth Proportional to 19,310.44, 28,958.20 and 8,222.36

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Solution

The fourth proportional to 19,310.44, 28,958.20 and 8,222.36 is: 12,330.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310.44 : 28,958.20 = 8,222.36 : x
  2. Step 2: Convert to fraction form
    19,310.44/28,958.20 = 8,222.36/x
  3. Step 3: Cross multiply
    19,310.44x = 28,958.20 × 8,222.36
  4. Step 4: Simplify right side
    19,310.44x = 238,104,745.35
  5. Step 5: Solve for x
    x = 238,104,745.35/19,310.44
  6. Step 6: Final answer
    x = 12,330.36

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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.