Home / 20,727.75-28,604.30-11,296.32

Finding the Fourth Proportional to 20,727.75, 28,604.30 and 11,296.32

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Solution

The fourth proportional to 20,727.75, 28,604.30 and 11,296.32 is: 15,588.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.75 : 28,604.30 = 11,296.32 : x
  2. Step 2: Convert to fraction form
    20,727.75/28,604.30 = 11,296.32/x
  3. Step 3: Cross multiply
    20,727.75x = 28,604.30 × 11,296.32
  4. Step 4: Simplify right side
    20,727.75x = 323,123,326.18
  5. Step 5: Solve for x
    x = 323,123,326.18/20,727.75
  6. Step 6: Final answer
    x = 15,588.92

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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.