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Finding the Fourth Proportional to 27,998.80, 41,965.80 and 11,350.60

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Solution

The fourth proportional to 27,998.80, 41,965.80 and 11,350.60 is: 17,012.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,998.80 : 41,965.80 = 11,350.60 : x
  2. Step 2: Convert to fraction form
    27,998.80/41,965.80 = 11,350.60/x
  3. Step 3: Cross multiply
    27,998.80x = 41,965.80 × 11,350.60
  4. Step 4: Simplify right side
    27,998.80x = 476,337,009.48
  5. Step 5: Solve for x
    x = 476,337,009.48/27,998.80
  6. Step 6: Final answer
    x = 17,012.77

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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.