Home / 36,321.46-50,121.32-21,218.40

Finding the Fourth Proportional to 36,321.46, 50,121.32 and 21,218.40

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Solution

The fourth proportional to 36,321.46, 50,121.32 and 21,218.40 is: 29,280.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,321.46 : 50,121.32 = 21,218.40 : x
  2. Step 2: Convert to fraction form
    36,321.46/50,121.32 = 21,218.40/x
  3. Step 3: Cross multiply
    36,321.46x = 50,121.32 × 21,218.40
  4. Step 4: Simplify right side
    36,321.46x = 1,063,494,110.20
  5. Step 5: Solve for x
    x = 1,063,494,110.20/36,321.46
  6. Step 6: Final answer
    x = 29,280.05

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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.