Home / 19,105.44-28,658.34-5,778.54

Finding the Fourth Proportional to 19,105.44, 28,658.34 and 5,778.54

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Solution

The fourth proportional to 19,105.44, 28,658.34 and 5,778.54 is: 8,667.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.44 : 28,658.34 = 5,778.54 : x
  2. Step 2: Convert to fraction form
    19,105.44/28,658.34 = 5,778.54/x
  3. Step 3: Cross multiply
    19,105.44x = 28,658.34 × 5,778.54
  4. Step 4: Simplify right side
    19,105.44x = 165,603,364.02
  5. Step 5: Solve for x
    x = 165,603,364.02/19,105.44
  6. Step 6: Final answer
    x = 8,667.86

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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.