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Finding the Fourth Proportional to 27,015.40, 40,498.80 and 17,149.60

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Solution

The fourth proportional to 27,015.40, 40,498.80 and 17,149.60 is: 25,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.40 : 40,498.80 = 17,149.60 : x
  2. Step 2: Convert to fraction form
    27,015.40/40,498.80 = 17,149.60/x
  3. Step 3: Cross multiply
    27,015.40x = 40,498.80 × 17,149.60
  4. Step 4: Simplify right side
    27,015.40x = 694,538,220.48
  5. Step 5: Solve for x
    x = 694,538,220.48/27,015.40
  6. Step 6: Final answer
    x = 25,708.97

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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.