Home / 20,268.02-30,367.10-18,213.62

Finding the Fourth Proportional to 20,268.02, 30,367.10 and 18,213.62

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Solution

The fourth proportional to 20,268.02, 30,367.10 and 18,213.62 is: 27,289.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,268.02 : 30,367.10 = 18,213.62 : x
  2. Step 2: Convert to fraction form
    20,268.02/30,367.10 = 18,213.62/x
  3. Step 3: Cross multiply
    20,268.02x = 30,367.10 × 18,213.62
  4. Step 4: Simplify right side
    20,268.02x = 553,094,819.90
  5. Step 5: Solve for x
    x = 553,094,819.90/20,268.02
  6. Step 6: Final answer
    x = 27,289.04

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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.