Home / 20,736.19-28,616.39-11,304.82

Finding the Fourth Proportional to 20,736.19, 28,616.39 and 11,304.82

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Solution

The fourth proportional to 20,736.19, 28,616.39 and 11,304.82 is: 15,600.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.19 : 28,616.39 = 11,304.82 : x
  2. Step 2: Convert to fraction form
    20,736.19/28,616.39 = 11,304.82/x
  3. Step 3: Cross multiply
    20,736.19x = 28,616.39 × 11,304.82
  4. Step 4: Simplify right side
    20,736.19x = 323,503,138.00
  5. Step 5: Solve for x
    x = 323,503,138.00/20,736.19
  6. Step 6: Final answer
    x = 15,600.90

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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.