Home / 20,587.82-30,879.68-5,796.40

Finding the Fourth Proportional to 20,587.82, 30,879.68 and 5,796.40

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Solution

The fourth proportional to 20,587.82, 30,879.68 and 5,796.40 is: 8,694.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587.82 : 30,879.68 = 5,796.40 : x
  2. Step 2: Convert to fraction form
    20,587.82/30,879.68 = 5,796.40/x
  3. Step 3: Cross multiply
    20,587.82x = 30,879.68 × 5,796.40
  4. Step 4: Simplify right side
    20,587.82x = 178,990,977.15
  5. Step 5: Solve for x
    x = 178,990,977.15/20,587.82
  6. Step 6: Final answer
    x = 8,694.02

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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.