Home / 28,716.60-43,107.30-22,171.80

Finding the Fourth Proportional to 28,716.60, 43,107.30 and 22,171.80

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Solution

The fourth proportional to 28,716.60, 43,107.30 and 22,171.80 is: 33,282.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.60 : 43,107.30 = 22,171.80 : x
  2. Step 2: Convert to fraction form
    28,716.60/43,107.30 = 22,171.80/x
  3. Step 3: Cross multiply
    28,716.60x = 43,107.30 × 22,171.80
  4. Step 4: Simplify right side
    28,716.60x = 955,766,434.14
  5. Step 5: Solve for x
    x = 955,766,434.14/28,716.60
  6. Step 6: Final answer
    x = 33,282.72

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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.