Home / 20,736.93-28,616.96-11,784.45

Finding the Fourth Proportional to 20,736.93, 28,616.96 and 11,784.45

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Solution

The fourth proportional to 20,736.93, 28,616.96 and 11,784.45 is: 16,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.93 : 28,616.96 = 11,784.45 : x
  2. Step 2: Convert to fraction form
    20,736.93/28,616.96 = 11,784.45/x
  3. Step 3: Cross multiply
    20,736.93x = 28,616.96 × 11,784.45
  4. Step 4: Simplify right side
    20,736.93x = 337,235,163.73
  5. Step 5: Solve for x
    x = 337,235,163.73/20,736.93
  6. Step 6: Final answer
    x = 16,262.54

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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.