Home / 20,650.14-30,953.12-8,164.76

Finding the Fourth Proportional to 20,650.14, 30,953.12 and 8,164.76

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Solution

The fourth proportional to 20,650.14, 30,953.12 and 8,164.76 is: 12,238.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.14 : 30,953.12 = 8,164.76 : x
  2. Step 2: Convert to fraction form
    20,650.14/30,953.12 = 8,164.76/x
  3. Step 3: Cross multiply
    20,650.14x = 30,953.12 × 8,164.76
  4. Step 4: Simplify right side
    20,650.14x = 252,724,600.46
  5. Step 5: Solve for x
    x = 252,724,600.46/20,650.14
  6. Step 6: Final answer
    x = 12,238.40

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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.