Home / 20,952.20-31,391.37-11,069.66

Finding the Fourth Proportional to 20,952.20, 31,391.37 and 11,069.66

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Solution

The fourth proportional to 20,952.20, 31,391.37 and 11,069.66 is: 16,584.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.20 : 31,391.37 = 11,069.66 : x
  2. Step 2: Convert to fraction form
    20,952.20/31,391.37 = 11,069.66/x
  3. Step 3: Cross multiply
    20,952.20x = 31,391.37 × 11,069.66
  4. Step 4: Simplify right side
    20,952.20x = 347,491,635.88
  5. Step 5: Solve for x
    x = 347,491,635.88/20,952.20
  6. Step 6: Final answer
    x = 16,584.98

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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.