Home / 28,716.40-43,074.58-8,996.50

Finding the Fourth Proportional to 28,716.40, 43,074.58 and 8,996.50

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Solution

The fourth proportional to 28,716.40, 43,074.58 and 8,996.50 is: 13,494.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.40 : 43,074.58 = 8,996.50 : x
  2. Step 2: Convert to fraction form
    28,716.40/43,074.58 = 8,996.50/x
  3. Step 3: Cross multiply
    28,716.40x = 43,074.58 × 8,996.50
  4. Step 4: Simplify right side
    28,716.40x = 387,520,458.97
  5. Step 5: Solve for x
    x = 387,520,458.97/28,716.40
  6. Step 6: Final answer
    x = 13,494.74

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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.