Home / 27,431.55-41,150.97-12,643.83

Finding the Fourth Proportional to 27,431.55, 41,150.97 and 12,643.83

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Solution

The fourth proportional to 27,431.55, 41,150.97 and 12,643.83 is: 18,967.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,431.55 : 41,150.97 = 12,643.83 : x
  2. Step 2: Convert to fraction form
    27,431.55/41,150.97 = 12,643.83/x
  3. Step 3: Cross multiply
    27,431.55x = 41,150.97 × 12,643.83
  4. Step 4: Simplify right side
    27,431.55x = 520,305,869.02
  5. Step 5: Solve for x
    x = 520,305,869.02/27,431.55
  6. Step 6: Final answer
    x = 18,967.43

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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.