Home / 25,321.80-37,979.10-8,682.60

Finding the Fourth Proportional to 25,321.80, 37,979.10 and 8,682.60

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Solution

The fourth proportional to 25,321.80, 37,979.10 and 8,682.60 is: 13,022.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,321.80 : 37,979.10 = 8,682.60 : x
  2. Step 2: Convert to fraction form
    25,321.80/37,979.10 = 8,682.60/x
  3. Step 3: Cross multiply
    25,321.80x = 37,979.10 × 8,682.60
  4. Step 4: Simplify right side
    25,321.80x = 329,757,333.66
  5. Step 5: Solve for x
    x = 329,757,333.66/25,321.80
  6. Step 6: Final answer
    x = 13,022.67

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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.