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Finding the Fourth Proportional to 27,404.80, 41,020.80 and 21,529.60

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Solution

The fourth proportional to 27,404.80, 41,020.80 and 21,529.60 is: 32,226.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,404.80 : 41,020.80 = 21,529.60 : x
  2. Step 2: Convert to fraction form
    27,404.80/41,020.80 = 21,529.60/x
  3. Step 3: Cross multiply
    27,404.80x = 41,020.80 × 21,529.60
  4. Step 4: Simplify right side
    27,404.80x = 883,161,415.68
  5. Step 5: Solve for x
    x = 883,161,415.68/27,404.80
  6. Step 6: Final answer
    x = 32,226.52

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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.