Home / 20,427.68-30,611.82-11,059.76

Finding the Fourth Proportional to 20,427.68, 30,611.82 and 11,059.76

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Solution

The fourth proportional to 20,427.68, 30,611.82 and 11,059.76 is: 16,573.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427.68 : 30,611.82 = 11,059.76 : x
  2. Step 2: Convert to fraction form
    20,427.68/30,611.82 = 11,059.76/x
  3. Step 3: Cross multiply
    20,427.68x = 30,611.82 × 11,059.76
  4. Step 4: Simplify right side
    20,427.68x = 338,559,382.36
  5. Step 5: Solve for x
    x = 338,559,382.36/20,427.68
  6. Step 6: Final answer
    x = 16,573.56

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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.