Home / 20,630.43-30,932.82-8,933.76

Finding the Fourth Proportional to 20,630.43, 30,932.82 and 8,933.76

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Solution

The fourth proportional to 20,630.43, 30,932.82 and 8,933.76 is: 13,395.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630.43 : 30,932.82 = 8,933.76 : x
  2. Step 2: Convert to fraction form
    20,630.43/30,932.82 = 8,933.76/x
  3. Step 3: Cross multiply
    20,630.43x = 30,932.82 × 8,933.76
  4. Step 4: Simplify right side
    20,630.43x = 276,346,390.00
  5. Step 5: Solve for x
    x = 276,346,390.00/20,630.43
  6. Step 6: Final answer
    x = 13,395.09

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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.