Home / 20,249.46-30,374.91-5,458.74

Finding the Fourth Proportional to 20,249.46, 30,374.91 and 5,458.74

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Solution

The fourth proportional to 20,249.46, 30,374.91 and 5,458.74 is: 8,188.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.46 : 30,374.91 = 5,458.74 : x
  2. Step 2: Convert to fraction form
    20,249.46/30,374.91 = 5,458.74/x
  3. Step 3: Cross multiply
    20,249.46x = 30,374.91 × 5,458.74
  4. Step 4: Simplify right side
    20,249.46x = 165,808,736.21
  5. Step 5: Solve for x
    x = 165,808,736.21/20,249.46
  6. Step 6: Final answer
    x = 8,188.30

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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.