Home / 28,198.09-42,283.32-11,553.61

Finding the Fourth Proportional to 28,198.09, 42,283.32 and 11,553.61

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Solution

The fourth proportional to 28,198.09, 42,283.32 and 11,553.61 is: 17,324.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198.09 : 42,283.32 = 11,553.61 : x
  2. Step 2: Convert to fraction form
    28,198.09/42,283.32 = 11,553.61/x
  3. Step 3: Cross multiply
    28,198.09x = 42,283.32 × 11,553.61
  4. Step 4: Simplify right side
    28,198.09x = 488,524,988.79
  5. Step 5: Solve for x
    x = 488,524,988.79/28,198.09
  6. Step 6: Final answer
    x = 17,324.75

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1.5x scale

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.