Home / 27,784.80-41,648.04-19,989.36

Finding the Fourth Proportional to 27,784.80, 41,648.04 and 19,989.36

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Solution

The fourth proportional to 27,784.80, 41,648.04 and 19,989.36 is: 29,963.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,784.80 : 41,648.04 = 19,989.36 : x
  2. Step 2: Convert to fraction form
    27,784.80/41,648.04 = 19,989.36/x
  3. Step 3: Cross multiply
    27,784.80x = 41,648.04 × 19,989.36
  4. Step 4: Simplify right side
    27,784.80x = 832,517,664.85
  5. Step 5: Solve for x
    x = 832,517,664.85/27,784.80
  6. Step 6: Final answer
    x = 29,963.06

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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.