Home / 36,405.22-50,240.82-20,490.70

Finding the Fourth Proportional to 36,405.22, 50,240.82 and 20,490.70

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Solution

The fourth proportional to 36,405.22, 50,240.82 and 20,490.70 is: 28,278.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,405.22 : 50,240.82 = 20,490.70 : x
  2. Step 2: Convert to fraction form
    36,405.22/50,240.82 = 20,490.70/x
  3. Step 3: Cross multiply
    36,405.22x = 50,240.82 × 20,490.70
  4. Step 4: Simplify right side
    36,405.22x = 1,029,469,570.37
  5. Step 5: Solve for x
    x = 1,029,469,570.37/36,405.22
  6. Step 6: Final answer
    x = 28,278.08

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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.