Home / 20,158.87-30,238.26-5,367.79

Finding the Fourth Proportional to 20,158.87, 30,238.26 and 5,367.79

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Solution

The fourth proportional to 20,158.87, 30,238.26 and 5,367.79 is: 8,051.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.87 : 30,238.26 = 5,367.79 : x
  2. Step 2: Convert to fraction form
    20,158.87/30,238.26 = 5,367.79/x
  3. Step 3: Cross multiply
    20,158.87x = 30,238.26 × 5,367.79
  4. Step 4: Simplify right side
    20,158.87x = 162,312,629.65
  5. Step 5: Solve for x
    x = 162,312,629.65/20,158.87
  6. Step 6: Final answer
    x = 8,051.67

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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.