Home / 36,405.37-50,239.38-20,489.89

Finding the Fourth Proportional to 36,405.37, 50,239.38 and 20,489.89

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Solution

The fourth proportional to 36,405.37, 50,239.38 and 20,489.89 is: 28,276.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,405.37 : 50,239.38 = 20,489.89 : x
  2. Step 2: Convert to fraction form
    36,405.37/50,239.38 = 20,489.89/x
  3. Step 3: Cross multiply
    36,405.37x = 50,239.38 × 20,489.89
  4. Step 4: Simplify right side
    36,405.37x = 1,029,399,369.87
  5. Step 5: Solve for x
    x = 1,029,399,369.87/36,405.37
  6. Step 6: Final answer
    x = 28,276.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.