Home / 20,727.88-28,604.67-11,296.64

Finding the Fourth Proportional to 20,727.88, 28,604.67 and 11,296.64

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Solution

The fourth proportional to 20,727.88, 28,604.67 and 11,296.64 is: 15,589.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.88 : 28,604.67 = 11,296.64 : x
  2. Step 2: Convert to fraction form
    20,727.88/28,604.67 = 11,296.64/x
  3. Step 3: Cross multiply
    20,727.88x = 28,604.67 × 11,296.64
  4. Step 4: Simplify right side
    20,727.88x = 323,136,659.31
  5. Step 5: Solve for x
    x = 323,136,659.31/20,727.88
  6. Step 6: Final answer
    x = 15,589.47

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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.