Home / 20,611.82-30,914.14-9,517.56

Finding the Fourth Proportional to 20,611.82, 30,914.14 and 9,517.56

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Solution

The fourth proportional to 20,611.82, 30,914.14 and 9,517.56 is: 14,274.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,611.82 : 30,914.14 = 9,517.56 : x
  2. Step 2: Convert to fraction form
    20,611.82/30,914.14 = 9,517.56/x
  3. Step 3: Cross multiply
    20,611.82x = 30,914.14 × 9,517.56
  4. Step 4: Simplify right side
    20,611.82x = 294,227,182.30
  5. Step 5: Solve for x
    x = 294,227,182.30/20,611.82
  6. Step 6: Final answer
    x = 14,274.68

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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.