Home / 27,213.20-40,815-7,486.96

Finding the Fourth Proportional to 27,213.20, 40,815 and 7,486.96

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Solution

The fourth proportional to 27,213.20, 40,815 and 7,486.96 is: 11,229.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,213.20 : 40,815 = 7,486.96 : x
  2. Step 2: Convert to fraction form
    27,213.20/40,815 = 7,486.96/x
  3. Step 3: Cross multiply
    27,213.20x = 40,815 × 7,486.96
  4. Step 4: Simplify right side
    27,213.20x = 305,580,272.40
  5. Step 5: Solve for x
    x = 305,580,272.40/27,213.20
  6. Step 6: Final answer
    x = 11,229.12

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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.