Home / 27,873.52-41,824.62-18,520

Finding the Fourth Proportional to 27,873.52, 41,824.62 and 18,520

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Solution

The fourth proportional to 27,873.52, 41,824.62 and 18,520 is: 27,789.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,873.52 : 41,824.62 = 18,520 : x
  2. Step 2: Convert to fraction form
    27,873.52/41,824.62 = 18,520/x
  3. Step 3: Cross multiply
    27,873.52x = 41,824.62 × 18,520
  4. Step 4: Simplify right side
    27,873.52x = 774,591,962.40
  5. Step 5: Solve for x
    x = 774,591,962.40/27,873.52
  6. Step 6: Final answer
    x = 27,789.53

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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.