Home / 20,550.91-30,819.07-7,399.75

Finding the Fourth Proportional to 20,550.91, 30,819.07 and 7,399.75

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Solution

The fourth proportional to 20,550.91, 30,819.07 and 7,399.75 is: 11,097.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550.91 : 30,819.07 = 7,399.75 : x
  2. Step 2: Convert to fraction form
    20,550.91/30,819.07 = 7,399.75/x
  3. Step 3: Cross multiply
    20,550.91x = 30,819.07 × 7,399.75
  4. Step 4: Simplify right side
    20,550.91x = 228,053,413.23
  5. Step 5: Solve for x
    x = 228,053,413.23/20,550.91
  6. Step 6: Final answer
    x = 11,097.00

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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.