Home / 20,896.39-28,837.52-11,464.95

Finding the Fourth Proportional to 20,896.39, 28,837.52 and 11,464.95

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Solution

The fourth proportional to 20,896.39, 28,837.52 and 11,464.95 is: 15,821.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.39 : 28,837.52 = 11,464.95 : x
  2. Step 2: Convert to fraction form
    20,896.39/28,837.52 = 11,464.95/x
  3. Step 3: Cross multiply
    20,896.39x = 28,837.52 × 11,464.95
  4. Step 4: Simplify right side
    20,896.39x = 330,620,667.60
  5. Step 5: Solve for x
    x = 330,620,667.60/20,896.39
  6. Step 6: Final answer
    x = 15,821.91

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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.