Home / 36,408.53-54,620.58-20,621.03

Finding the Fourth Proportional to 36,408.53, 54,620.58 and 20,621.03

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Solution

The fourth proportional to 36,408.53, 54,620.58 and 20,621.03 is: 30,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,408.53 : 54,620.58 = 20,621.03 : x
  2. Step 2: Convert to fraction form
    36,408.53/54,620.58 = 20,621.03/x
  3. Step 3: Cross multiply
    36,408.53x = 54,620.58 × 20,621.03
  4. Step 4: Simplify right side
    36,408.53x = 1,126,332,345.69
  5. Step 5: Solve for x
    x = 1,126,332,345.69/36,408.53
  6. Step 6: Final answer
    x = 30,935.95

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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.