Home / 20,896.22-28,836.81-11,464.82

Finding the Fourth Proportional to 20,896.22, 28,836.81 and 11,464.82

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Solution

The fourth proportional to 20,896.22, 28,836.81 and 11,464.82 is: 15,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.22 : 28,836.81 = 11,464.82 : x
  2. Step 2: Convert to fraction form
    20,896.22/28,836.81 = 11,464.82/x
  3. Step 3: Cross multiply
    20,896.22x = 28,836.81 × 11,464.82
  4. Step 4: Simplify right side
    20,896.22x = 330,608,836.02
  5. Step 5: Solve for x
    x = 330,608,836.02/20,896.22
  6. Step 6: Final answer
    x = 15,821.47

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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.