Home / 20,141.44-30,216.48-8,447.92

Finding the Fourth Proportional to 20,141.44, 30,216.48 and 8,447.92

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Solution

The fourth proportional to 20,141.44, 30,216.48 and 8,447.92 is: 12,673.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.44 : 30,216.48 = 8,447.92 : x
  2. Step 2: Convert to fraction form
    20,141.44/30,216.48 = 8,447.92/x
  3. Step 3: Cross multiply
    20,141.44x = 30,216.48 × 8,447.92
  4. Step 4: Simplify right side
    20,141.44x = 255,266,405.72
  5. Step 5: Solve for x
    x = 255,266,405.72/20,141.44
  6. Step 6: Final answer
    x = 12,673.69

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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.