Home / 20,933.83-31,394.50-6,891.27

Finding the Fourth Proportional to 20,933.83, 31,394.50 and 6,891.27

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Solution

The fourth proportional to 20,933.83, 31,394.50 and 6,891.27 is: 10,334.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.83 : 31,394.50 = 6,891.27 : x
  2. Step 2: Convert to fraction form
    20,933.83/31,394.50 = 6,891.27/x
  3. Step 3: Cross multiply
    20,933.83x = 31,394.50 × 6,891.27
  4. Step 4: Simplify right side
    20,933.83x = 216,347,976.02
  5. Step 5: Solve for x
    x = 216,347,976.02/20,933.83
  6. Step 6: Final answer
    x = 10,334.85

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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.