Home / 20,342.52-28,074.24-11,847.29

Finding the Fourth Proportional to 20,342.52, 28,074.24 and 11,847.29

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Solution

The fourth proportional to 20,342.52, 28,074.24 and 11,847.29 is: 16,350.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342.52 : 28,074.24 = 11,847.29 : x
  2. Step 2: Convert to fraction form
    20,342.52/28,074.24 = 11,847.29/x
  3. Step 3: Cross multiply
    20,342.52x = 28,074.24 × 11,847.29
  4. Step 4: Simplify right side
    20,342.52x = 332,603,522.44
  5. Step 5: Solve for x
    x = 332,603,522.44/20,342.52
  6. Step 6: Final answer
    x = 16,350.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.