Home / 27,761.62-41,634.60-9,989.68

Finding the Fourth Proportional to 27,761.62, 41,634.60 and 9,989.68

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Solution

The fourth proportional to 27,761.62, 41,634.60 and 9,989.68 is: 14,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,761.62 : 41,634.60 = 9,989.68 : x
  2. Step 2: Convert to fraction form
    27,761.62/41,634.60 = 9,989.68/x
  3. Step 3: Cross multiply
    27,761.62x = 41,634.60 × 9,989.68
  4. Step 4: Simplify right side
    27,761.62x = 415,916,330.93
  5. Step 5: Solve for x
    x = 415,916,330.93/27,761.62
  6. Step 6: Final answer
    x = 14,981.70

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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.