Home / 45,228.06-67,845.32-11,947.79

Finding the Fourth Proportional to 45,228.06, 67,845.32 and 11,947.79

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Solution

The fourth proportional to 45,228.06, 67,845.32 and 11,947.79 is: 17,922.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,228.06 : 67,845.32 = 11,947.79 : x
  2. Step 2: Convert to fraction form
    45,228.06/67,845.32 = 11,947.79/x
  3. Step 3: Cross multiply
    45,228.06x = 67,845.32 × 11,947.79
  4. Step 4: Simplify right side
    45,228.06x = 810,601,236.88
  5. Step 5: Solve for x
    x = 810,601,236.88/45,228.06
  6. Step 6: Final answer
    x = 17,922.53

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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.