Home / 20,727.80-31,083.78-6,684.26

Finding the Fourth Proportional to 20,727.80, 31,083.78 and 6,684.26

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Solution

The fourth proportional to 20,727.80, 31,083.78 and 6,684.26 is: 10,023.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.80 : 31,083.78 = 6,684.26 : x
  2. Step 2: Convert to fraction form
    20,727.80/31,083.78 = 6,684.26/x
  3. Step 3: Cross multiply
    20,727.80x = 31,083.78 × 6,684.26
  4. Step 4: Simplify right side
    20,727.80x = 207,772,067.30
  5. Step 5: Solve for x
    x = 207,772,067.30/20,727.80
  6. Step 6: Final answer
    x = 10,023.84

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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.