Home / 36,212.40-54,245.70-20,611.80

Finding the Fourth Proportional to 36,212.40, 54,245.70 and 20,611.80

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Solution

The fourth proportional to 36,212.40, 54,245.70 and 20,611.80 is: 30,876.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,212.40 : 54,245.70 = 20,611.80 : x
  2. Step 2: Convert to fraction form
    36,212.40/54,245.70 = 20,611.80/x
  3. Step 3: Cross multiply
    36,212.40x = 54,245.70 × 20,611.80
  4. Step 4: Simplify right side
    36,212.40x = 1,118,101,519.26
  5. Step 5: Solve for x
    x = 1,118,101,519.26/36,212.40
  6. Step 6: Final answer
    x = 30,876.21

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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.