Home / 27,872.90-41,815.73-12,080.58

Finding the Fourth Proportional to 27,872.90, 41,815.73 and 12,080.58

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Solution

The fourth proportional to 27,872.90, 41,815.73 and 12,080.58 is: 18,123.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,872.90 : 41,815.73 = 12,080.58 : x
  2. Step 2: Convert to fraction form
    27,872.90/41,815.73 = 12,080.58/x
  3. Step 3: Cross multiply
    27,872.90x = 41,815.73 × 12,080.58
  4. Step 4: Simplify right side
    27,872.90x = 505,158,271.52
  5. Step 5: Solve for x
    x = 505,158,271.52/27,872.90
  6. Step 6: Final answer
    x = 18,123.64

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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.