Home / 20,163.72-30,247.80-5,373.12

Finding the Fourth Proportional to 20,163.72, 30,247.80 and 5,373.12

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Solution

The fourth proportional to 20,163.72, 30,247.80 and 5,373.12 is: 8,060.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.72 : 30,247.80 = 5,373.12 : x
  2. Step 2: Convert to fraction form
    20,163.72/30,247.80 = 5,373.12/x
  3. Step 3: Cross multiply
    20,163.72x = 30,247.80 × 5,373.12
  4. Step 4: Simplify right side
    20,163.72x = 162,525,059.14
  5. Step 5: Solve for x
    x = 162,525,059.14/20,163.72
  6. Step 6: Final answer
    x = 8,060.27

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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.