Home / 20,404.03-30,611.76-7,257.73

Finding the Fourth Proportional to 20,404.03, 30,611.76 and 7,257.73

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Solution

The fourth proportional to 20,404.03, 30,611.76 and 7,257.73 is: 10,888.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.03 : 30,611.76 = 7,257.73 : x
  2. Step 2: Convert to fraction form
    20,404.03/30,611.76 = 7,257.73/x
  3. Step 3: Cross multiply
    20,404.03x = 30,611.76 × 7,257.73
  4. Step 4: Simplify right side
    20,404.03x = 222,171,888.90
  5. Step 5: Solve for x
    x = 222,171,888.90/20,404.03
  6. Step 6: Final answer
    x = 10,888.63

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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.