Home / 20,268.20-30,402.30-5,476.70

Finding the Fourth Proportional to 20,268.20, 30,402.30 and 5,476.70

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Solution

The fourth proportional to 20,268.20, 30,402.30 and 5,476.70 is: 8,215.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,268.20 : 30,402.30 = 5,476.70 : x
  2. Step 2: Convert to fraction form
    20,268.20/30,402.30 = 5,476.70/x
  3. Step 3: Cross multiply
    20,268.20x = 30,402.30 × 5,476.70
  4. Step 4: Simplify right side
    20,268.20x = 166,504,276.41
  5. Step 5: Solve for x
    x = 166,504,276.41/20,268.20
  6. Step 6: Final answer
    x = 8,215.05

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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.