Home / 36,753.75-55,155.18-13,380.21

Finding the Fourth Proportional to 36,753.75, 55,155.18 and 13,380.21

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Solution

The fourth proportional to 36,753.75, 55,155.18 and 13,380.21 is: 20,079.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,753.75 : 55,155.18 = 13,380.21 : x
  2. Step 2: Convert to fraction form
    36,753.75/55,155.18 = 13,380.21/x
  3. Step 3: Cross multiply
    36,753.75x = 55,155.18 × 13,380.21
  4. Step 4: Simplify right side
    36,753.75x = 737,987,890.99
  5. Step 5: Solve for x
    x = 737,987,890.99/36,753.75
  6. Step 6: Final answer
    x = 20,079.25

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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.