Home / 20,481.41-30,722.72-8,000.93

Finding the Fourth Proportional to 20,481.41, 30,722.72 and 8,000.93

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Solution

The fourth proportional to 20,481.41, 30,722.72 and 8,000.93 is: 12,001.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,481.41 : 30,722.72 = 8,000.93 : x
  2. Step 2: Convert to fraction form
    20,481.41/30,722.72 = 8,000.93/x
  3. Step 3: Cross multiply
    20,481.41x = 30,722.72 × 8,000.93
  4. Step 4: Simplify right side
    20,481.41x = 245,810,138.51
  5. Step 5: Solve for x
    x = 245,810,138.51/20,481.41
  6. Step 6: Final answer
    x = 12,001.62

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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.