Home / 19,110.33-28,658.22-7,420.83

Finding the Fourth Proportional to 19,110.33, 28,658.22 and 7,420.83

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Solution

The fourth proportional to 19,110.33, 28,658.22 and 7,420.83 is: 11,128.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110.33 : 28,658.22 = 7,420.83 : x
  2. Step 2: Convert to fraction form
    19,110.33/28,658.22 = 7,420.83/x
  3. Step 3: Cross multiply
    19,110.33x = 28,658.22 × 7,420.83
  4. Step 4: Simplify right side
    19,110.33x = 212,667,778.72
  5. Step 5: Solve for x
    x = 212,667,778.72/19,110.33
  6. Step 6: Final answer
    x = 11,128.42

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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.