Home / 28,786.64-43,175.26-20,441.42

Finding the Fourth Proportional to 28,786.64, 43,175.26 and 20,441.42

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Solution

The fourth proportional to 28,786.64, 43,175.26 and 20,441.42 is: 30,658.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,786.64 : 43,175.26 = 20,441.42 : x
  2. Step 2: Convert to fraction form
    28,786.64/43,175.26 = 20,441.42/x
  3. Step 3: Cross multiply
    28,786.64x = 43,175.26 × 20,441.42
  4. Step 4: Simplify right side
    28,786.64x = 882,563,356.29
  5. Step 5: Solve for x
    x = 882,563,356.29/28,786.64
  6. Step 6: Final answer
    x = 30,658.78

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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.