Home / 19,919.54-29,880.12-5,879.57

Finding the Fourth Proportional to 19,919.54, 29,880.12 and 5,879.57

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Solution

The fourth proportional to 19,919.54, 29,880.12 and 5,879.57 is: 8,819.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.54 : 29,880.12 = 5,879.57 : x
  2. Step 2: Convert to fraction form
    19,919.54/29,880.12 = 5,879.57/x
  3. Step 3: Cross multiply
    19,919.54x = 29,880.12 × 5,879.57
  4. Step 4: Simplify right side
    19,919.54x = 175,682,107.75
  5. Step 5: Solve for x
    x = 175,682,107.75/19,919.54
  6. Step 6: Final answer
    x = 8,819.59

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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.