Home / 20,550.54-30,823.38-8,080.32

Finding the Fourth Proportional to 20,550.54, 30,823.38 and 8,080.32

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Solution

The fourth proportional to 20,550.54, 30,823.38 and 8,080.32 is: 12,119.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550.54 : 30,823.38 = 8,080.32 : x
  2. Step 2: Convert to fraction form
    20,550.54/30,823.38 = 8,080.32/x
  3. Step 3: Cross multiply
    20,550.54x = 30,823.38 × 8,080.32
  4. Step 4: Simplify right side
    20,550.54x = 249,062,773.88
  5. Step 5: Solve for x
    x = 249,062,773.88/20,550.54
  6. Step 6: Final answer
    x = 12,119.52

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1.5x scale

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.