Home / 19,230.75-28,847.21-5,380.83

Finding the Fourth Proportional to 19,230.75, 28,847.21 and 5,380.83

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Solution

The fourth proportional to 19,230.75, 28,847.21 and 5,380.83 is: 8,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.75 : 28,847.21 = 5,380.83 : x
  2. Step 2: Convert to fraction form
    19,230.75/28,847.21 = 5,380.83/x
  3. Step 3: Cross multiply
    19,230.75x = 28,847.21 × 5,380.83
  4. Step 4: Simplify right side
    19,230.75x = 155,221,906.08
  5. Step 5: Solve for x
    x = 155,221,906.08/19,230.75
  6. Step 6: Final answer
    x = 8,071.55

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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.