Home / 27,829.72-41,742.96-9,121.96

Finding the Fourth Proportional to 27,829.72, 41,742.96 and 9,121.96

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Solution

The fourth proportional to 27,829.72, 41,742.96 and 9,121.96 is: 13,682.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,829.72 : 41,742.96 = 9,121.96 : x
  2. Step 2: Convert to fraction form
    27,829.72/41,742.96 = 9,121.96/x
  3. Step 3: Cross multiply
    27,829.72x = 41,742.96 × 9,121.96
  4. Step 4: Simplify right side
    27,829.72x = 380,777,611.40
  5. Step 5: Solve for x
    x = 380,777,611.40/27,829.72
  6. Step 6: Final answer
    x = 13,682.41

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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.