Home / 20,104.54-30,159.15-7,633.90

Finding the Fourth Proportional to 20,104.54, 30,159.15 and 7,633.90

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Solution

The fourth proportional to 20,104.54, 30,159.15 and 7,633.90 is: 11,451.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.54 : 30,159.15 = 7,633.90 : x
  2. Step 2: Convert to fraction form
    20,104.54/30,159.15 = 7,633.90/x
  3. Step 3: Cross multiply
    20,104.54x = 30,159.15 × 7,633.90
  4. Step 4: Simplify right side
    20,104.54x = 230,231,935.19
  5. Step 5: Solve for x
    x = 230,231,935.19/20,104.54
  6. Step 6: Final answer
    x = 11,451.74

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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.