Home / 20,622.60-30,945.24-8,935.92

Finding the Fourth Proportional to 20,622.60, 30,945.24 and 8,935.92

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Solution

The fourth proportional to 20,622.60, 30,945.24 and 8,935.92 is: 13,408.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,622.60 : 30,945.24 = 8,935.92 : x
  2. Step 2: Convert to fraction form
    20,622.60/30,945.24 = 8,935.92/x
  3. Step 3: Cross multiply
    20,622.60x = 30,945.24 × 8,935.92
  4. Step 4: Simplify right side
    20,622.60x = 276,524,189.02
  5. Step 5: Solve for x
    x = 276,524,189.02/20,622.60
  6. Step 6: Final answer
    x = 13,408.79

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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.