Home / 27,772.22-38,285.79-19,800.61

Finding the Fourth Proportional to 27,772.22, 38,285.79 and 19,800.61

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Solution

The fourth proportional to 27,772.22, 38,285.79 and 19,800.61 is: 27,296.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,772.22 : 38,285.79 = 19,800.61 : x
  2. Step 2: Convert to fraction form
    27,772.22/38,285.79 = 19,800.61/x
  3. Step 3: Cross multiply
    27,772.22x = 38,285.79 × 19,800.61
  4. Step 4: Simplify right side
    27,772.22x = 758,081,996.33
  5. Step 5: Solve for x
    x = 758,081,996.33/27,772.22
  6. Step 6: Final answer
    x = 27,296.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.