Home / 27,731.24-41,601.72-12,145.28

Finding the Fourth Proportional to 27,731.24, 41,601.72 and 12,145.28

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Solution

The fourth proportional to 27,731.24, 41,601.72 and 12,145.28 is: 18,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,731.24 : 41,601.72 = 12,145.28 : x
  2. Step 2: Convert to fraction form
    27,731.24/41,601.72 = 12,145.28/x
  3. Step 3: Cross multiply
    27,731.24x = 41,601.72 × 12,145.28
  4. Step 4: Simplify right side
    27,731.24x = 505,264,537.88
  5. Step 5: Solve for x
    x = 505,264,537.88/27,731.24
  6. Step 6: Final answer
    x = 18,220.05

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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.