Home / 27,131.85-40,697.37-7,410.35

Finding the Fourth Proportional to 27,131.85, 40,697.37 and 7,410.35

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Solution

The fourth proportional to 27,131.85, 40,697.37 and 7,410.35 is: 11,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,131.85 : 40,697.37 = 7,410.35 : x
  2. Step 2: Convert to fraction form
    27,131.85/40,697.37 = 7,410.35/x
  3. Step 3: Cross multiply
    27,131.85x = 40,697.37 × 7,410.35
  4. Step 4: Simplify right side
    27,131.85x = 301,581,857.52
  5. Step 5: Solve for x
    x = 301,581,857.52/27,131.85
  6. Step 6: Final answer
    x = 11,115.42

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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.