Home / 31,687.20-43,811.82-27,750.60

Finding the Fourth Proportional to 31,687.20, 43,811.82 and 27,750.60

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Solution

The fourth proportional to 31,687.20, 43,811.82 and 27,750.60 is: 38,368.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,687.20 : 43,811.82 = 27,750.60 : x
  2. Step 2: Convert to fraction form
    31,687.20/43,811.82 = 27,750.60/x
  3. Step 3: Cross multiply
    31,687.20x = 43,811.82 × 27,750.60
  4. Step 4: Simplify right side
    31,687.20x = 1,215,804,292.09
  5. Step 5: Solve for x
    x = 1,215,804,292.09/31,687.20
  6. Step 6: Final answer
    x = 38,368.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.