Home / 47,198.28-70,786.08-13,909.35

Finding the Fourth Proportional to 47,198.28, 70,786.08 and 13,909.35

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Solution

The fourth proportional to 47,198.28, 70,786.08 and 13,909.35 is: 20,860.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,198.28 : 70,786.08 = 13,909.35 : x
  2. Step 2: Convert to fraction form
    47,198.28/70,786.08 = 13,909.35/x
  3. Step 3: Cross multiply
    47,198.28x = 70,786.08 × 13,909.35
  4. Step 4: Simplify right side
    47,198.28x = 984,588,361.85
  5. Step 5: Solve for x
    x = 984,588,361.85/47,198.28
  6. Step 6: Final answer
    x = 20,860.68

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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.