Home / 20,158.82-30,238.75-5,367.76

Finding the Fourth Proportional to 20,158.82, 30,238.75 and 5,367.76

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Solution

The fourth proportional to 20,158.82, 30,238.75 and 5,367.76 is: 8,051.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.82 : 30,238.75 = 5,367.76 : x
  2. Step 2: Convert to fraction form
    20,158.82/30,238.75 = 5,367.76/x
  3. Step 3: Cross multiply
    20,158.82x = 30,238.75 × 5,367.76
  4. Step 4: Simplify right side
    20,158.82x = 162,314,352.70
  5. Step 5: Solve for x
    x = 162,314,352.70/20,158.82
  6. Step 6: Final answer
    x = 8,051.78

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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.