Home / 36,408.72-54,525.60-20,778.96

Finding the Fourth Proportional to 36,408.72, 54,525.60 and 20,778.96

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Solution

The fourth proportional to 36,408.72, 54,525.60 and 20,778.96 is: 31,118.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,408.72 : 54,525.60 = 20,778.96 : x
  2. Step 2: Convert to fraction form
    36,408.72/54,525.60 = 20,778.96/x
  3. Step 3: Cross multiply
    36,408.72x = 54,525.60 × 20,778.96
  4. Step 4: Simplify right side
    36,408.72x = 1,132,985,261.38
  5. Step 5: Solve for x
    x = 1,132,985,261.38/36,408.72
  6. Step 6: Final answer
    x = 31,118.51

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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.