Home / 20,581.25-30,879.26-8,094.35

Finding the Fourth Proportional to 20,581.25, 30,879.26 and 8,094.35

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Solution

The fourth proportional to 20,581.25, 30,879.26 and 8,094.35 is: 12,144.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.25 : 30,879.26 = 8,094.35 : x
  2. Step 2: Convert to fraction form
    20,581.25/30,879.26 = 8,094.35/x
  3. Step 3: Cross multiply
    20,581.25x = 30,879.26 × 8,094.35
  4. Step 4: Simplify right side
    20,581.25x = 249,947,343.31
  5. Step 5: Solve for x
    x = 249,947,343.31/20,581.25
  6. Step 6: Final answer
    x = 12,144.42

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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.