Home / 36,090.82-54,122.75-12,391.64

Finding the Fourth Proportional to 36,090.82, 54,122.75 and 12,391.64

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Solution

The fourth proportional to 36,090.82, 54,122.75 and 12,391.64 is: 18,582.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,090.82 : 54,122.75 = 12,391.64 : x
  2. Step 2: Convert to fraction form
    36,090.82/54,122.75 = 12,391.64/x
  3. Step 3: Cross multiply
    36,090.82x = 54,122.75 × 12,391.64
  4. Step 4: Simplify right side
    36,090.82x = 670,669,550.67
  5. Step 5: Solve for x
    x = 670,669,550.67/36,090.82
  6. Step 6: Final answer
    x = 18,582.83

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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.