Home / 28,809.50-43,231.26-12,168.44

Finding the Fourth Proportional to 28,809.50, 43,231.26 and 12,168.44

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Solution

The fourth proportional to 28,809.50, 43,231.26 and 12,168.44 is: 18,259.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,809.50 : 43,231.26 = 12,168.44 : x
  2. Step 2: Convert to fraction form
    28,809.50/43,231.26 = 12,168.44/x
  3. Step 3: Cross multiply
    28,809.50x = 43,231.26 × 12,168.44
  4. Step 4: Simplify right side
    28,809.50x = 526,056,993.43
  5. Step 5: Solve for x
    x = 526,056,993.43/28,809.50
  6. Step 6: Final answer
    x = 18,259.84

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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.