Home / 20,736.93-28,616.89-11,305.49

Finding the Fourth Proportional to 20,736.93, 28,616.89 and 11,305.49

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Solution

The fourth proportional to 20,736.93, 28,616.89 and 11,305.49 is: 15,601.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.93 : 28,616.89 = 11,305.49 : x
  2. Step 2: Convert to fraction form
    20,736.93/28,616.89 = 11,305.49/x
  3. Step 3: Cross multiply
    20,736.93x = 28,616.89 × 11,305.49
  4. Step 4: Simplify right side
    20,736.93x = 323,527,963.73
  5. Step 5: Solve for x
    x = 323,527,963.73/20,736.93
  6. Step 6: Final answer
    x = 15,601.54

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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.