Home / 19,222.08-28,833.12-7,540.80

Finding the Fourth Proportional to 19,222.08, 28,833.12 and 7,540.80

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Solution

The fourth proportional to 19,222.08, 28,833.12 and 7,540.80 is: 11,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,222.08 : 28,833.12 = 7,540.80 : x
  2. Step 2: Convert to fraction form
    19,222.08/28,833.12 = 7,540.80/x
  3. Step 3: Cross multiply
    19,222.08x = 28,833.12 × 7,540.80
  4. Step 4: Simplify right side
    19,222.08x = 217,424,791.30
  5. Step 5: Solve for x
    x = 217,424,791.30/19,222.08
  6. Step 6: Final answer
    x = 11,311.20

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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.