Home / 20,716.02-28,589.72-11,766.33

Finding the Fourth Proportional to 20,716.02, 28,589.72 and 11,766.33

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Solution

The fourth proportional to 20,716.02, 28,589.72 and 11,766.33 is: 16,238.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.02 : 28,589.72 = 11,766.33 : x
  2. Step 2: Convert to fraction form
    20,716.02/28,589.72 = 11,766.33/x
  3. Step 3: Cross multiply
    20,716.02x = 28,589.72 × 11,766.33
  4. Step 4: Simplify right side
    20,716.02x = 336,396,021.30
  5. Step 5: Solve for x
    x = 336,396,021.30/20,716.02
  6. Step 6: Final answer
    x = 16,238.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.