Home / 36,321.98-50,121.60-20,403.32

Finding the Fourth Proportional to 36,321.98, 50,121.60 and 20,403.32

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Solution

The fourth proportional to 36,321.98, 50,121.60 and 20,403.32 is: 28,155.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,321.98 : 50,121.60 = 20,403.32 : x
  2. Step 2: Convert to fraction form
    36,321.98/50,121.60 = 20,403.32/x
  3. Step 3: Cross multiply
    36,321.98x = 50,121.60 × 20,403.32
  4. Step 4: Simplify right side
    36,321.98x = 1,022,647,043.71
  5. Step 5: Solve for x
    x = 1,022,647,043.71/36,321.98
  6. Step 6: Final answer
    x = 28,155.05

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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.