Home / 28,680.96-43,021.44-10,212.96

Finding the Fourth Proportional to 28,680.96, 43,021.44 and 10,212.96

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Solution

The fourth proportional to 28,680.96, 43,021.44 and 10,212.96 is: 15,319.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.96 : 43,021.44 = 10,212.96 : x
  2. Step 2: Convert to fraction form
    28,680.96/43,021.44 = 10,212.96/x
  3. Step 3: Cross multiply
    28,680.96x = 43,021.44 × 10,212.96
  4. Step 4: Simplify right side
    28,680.96x = 439,376,245.86
  5. Step 5: Solve for x
    x = 439,376,245.86/28,680.96
  6. Step 6: Final answer
    x = 15,319.44

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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.