Home / 47,163.42-70,720.79-13,879.16

Finding the Fourth Proportional to 47,163.42, 70,720.79 and 13,879.16

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Solution

The fourth proportional to 47,163.42, 70,720.79 and 13,879.16 is: 20,811.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,163.42 : 70,720.79 = 13,879.16 : x
  2. Step 2: Convert to fraction form
    47,163.42/70,720.79 = 13,879.16/x
  3. Step 3: Cross multiply
    47,163.42x = 70,720.79 × 13,879.16
  4. Step 4: Simplify right side
    47,163.42x = 981,545,267.14
  5. Step 5: Solve for x
    x = 981,545,267.14/47,163.42
  6. Step 6: Final answer
    x = 20,811.58

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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.