Home / 28,227.44-42,249.48-20,828.84

Finding the Fourth Proportional to 28,227.44, 42,249.48 and 20,828.84

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Solution

The fourth proportional to 28,227.44, 42,249.48 and 20,828.84 is: 31,175.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,227.44 : 42,249.48 = 20,828.84 : x
  2. Step 2: Convert to fraction form
    28,227.44/42,249.48 = 20,828.84/x
  3. Step 3: Cross multiply
    28,227.44x = 42,249.48 × 20,828.84
  4. Step 4: Simplify right side
    28,227.44x = 880,007,659.00
  5. Step 5: Solve for x
    x = 880,007,659.00/28,227.44
  6. Step 6: Final answer
    x = 31,175.61

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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.