Home / 20,530.97-30,796.46-11,759.75

Finding the Fourth Proportional to 20,530.97, 30,796.46 and 11,759.75

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Solution

The fourth proportional to 20,530.97, 30,796.46 and 11,759.75 is: 17,639.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530.97 : 30,796.46 = 11,759.75 : x
  2. Step 2: Convert to fraction form
    20,530.97/30,796.46 = 11,759.75/x
  3. Step 3: Cross multiply
    20,530.97x = 30,796.46 × 11,759.75
  4. Step 4: Simplify right side
    20,530.97x = 362,158,457.70
  5. Step 5: Solve for x
    x = 362,158,457.70/20,530.97
  6. Step 6: Final answer
    x = 17,639.62

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.