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Finding the Fourth Proportional to 27,455.60, 41,221.80 and 17,087.60

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Solution

The fourth proportional to 27,455.60, 41,221.80 and 17,087.60 is: 25,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,455.60 : 41,221.80 = 17,087.60 : x
  2. Step 2: Convert to fraction form
    27,455.60/41,221.80 = 17,087.60/x
  3. Step 3: Cross multiply
    27,455.60x = 41,221.80 × 17,087.60
  4. Step 4: Simplify right side
    27,455.60x = 704,381,629.68
  5. Step 5: Solve for x
    x = 704,381,629.68/27,455.60
  6. Step 6: Final answer
    x = 25,655.30

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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.