Home / 27,778.80-41,639.04-19,983.36

Finding the Fourth Proportional to 27,778.80, 41,639.04 and 19,983.36

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Solution

The fourth proportional to 27,778.80, 41,639.04 and 19,983.36 is: 29,954.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.80 : 41,639.04 = 19,983.36 : x
  2. Step 2: Convert to fraction form
    27,778.80/41,639.04 = 19,983.36/x
  3. Step 3: Cross multiply
    27,778.80x = 41,639.04 × 19,983.36
  4. Step 4: Simplify right side
    27,778.80x = 832,087,926.37
  5. Step 5: Solve for x
    x = 832,087,926.37/27,778.80
  6. Step 6: Final answer
    x = 29,954.06

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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.