Home / 27,778.58-38,294.52-19,806.98

Finding the Fourth Proportional to 27,778.58, 38,294.52 and 19,806.98

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Solution

The fourth proportional to 27,778.58, 38,294.52 and 19,806.98 is: 27,305.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.58 : 38,294.52 = 19,806.98 : x
  2. Step 2: Convert to fraction form
    27,778.58/38,294.52 = 19,806.98/x
  3. Step 3: Cross multiply
    27,778.58x = 38,294.52 × 19,806.98
  4. Step 4: Simplify right side
    27,778.58x = 758,498,791.75
  5. Step 5: Solve for x
    x = 758,498,791.75/27,778.58
  6. Step 6: Final answer
    x = 27,305.17

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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.