Home / 20,516.18-30,761.96-8,021.30

Finding the Fourth Proportional to 20,516.18, 30,761.96 and 8,021.30

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Solution

The fourth proportional to 20,516.18, 30,761.96 and 8,021.30 is: 12,027.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.18 : 30,761.96 = 8,021.30 : x
  2. Step 2: Convert to fraction form
    20,516.18/30,761.96 = 8,021.30/x
  3. Step 3: Cross multiply
    20,516.18x = 30,761.96 × 8,021.30
  4. Step 4: Simplify right side
    20,516.18x = 246,750,715.83
  5. Step 5: Solve for x
    x = 246,750,715.83/20,516.18
  6. Step 6: Final answer
    x = 12,027.13

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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.