Home / 19,198.80-28,798.20-11,442.24

Finding the Fourth Proportional to 19,198.80, 28,798.20 and 11,442.24

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Solution

The fourth proportional to 19,198.80, 28,798.20 and 11,442.24 is: 17,163.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,198.80 : 28,798.20 = 11,442.24 : x
  2. Step 2: Convert to fraction form
    19,198.80/28,798.20 = 11,442.24/x
  3. Step 3: Cross multiply
    19,198.80x = 28,798.20 × 11,442.24
  4. Step 4: Simplify right side
    19,198.80x = 329,515,915.97
  5. Step 5: Solve for x
    x = 329,515,915.97/19,198.80
  6. Step 6: Final answer
    x = 17,163.36

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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.