Home / 20,141.08-30,185.98-11,380.88

Finding the Fourth Proportional to 20,141.08, 30,185.98 and 11,380.88

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Solution

The fourth proportional to 20,141.08, 30,185.98 and 11,380.88 is: 17,056.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.08 : 30,185.98 = 11,380.88 : x
  2. Step 2: Convert to fraction form
    20,141.08/30,185.98 = 11,380.88/x
  3. Step 3: Cross multiply
    20,141.08x = 30,185.98 × 11,380.88
  4. Step 4: Simplify right side
    20,141.08x = 343,543,016.06
  5. Step 5: Solve for x
    x = 343,543,016.06/20,141.08
  6. Step 6: Final answer
    x = 17,056.83

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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.