Home / 28,741.26-43,122.42-12,105.48

Finding the Fourth Proportional to 28,741.26, 43,122.42 and 12,105.48

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Solution

The fourth proportional to 28,741.26, 43,122.42 and 12,105.48 is: 18,162.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,741.26 : 43,122.42 = 12,105.48 : x
  2. Step 2: Convert to fraction form
    28,741.26/43,122.42 = 12,105.48/x
  3. Step 3: Cross multiply
    28,741.26x = 43,122.42 × 12,105.48
  4. Step 4: Simplify right side
    28,741.26x = 522,017,592.86
  5. Step 5: Solve for x
    x = 522,017,592.86/28,741.26
  6. Step 6: Final answer
    x = 18,162.66

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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.