Home / 20,480.28-30,732.37-8,633.33

Finding the Fourth Proportional to 20,480.28, 30,732.37 and 8,633.33

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Solution

The fourth proportional to 20,480.28, 30,732.37 and 8,633.33 is: 12,955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480.28 : 30,732.37 = 8,633.33 : x
  2. Step 2: Convert to fraction form
    20,480.28/30,732.37 = 8,633.33/x
  3. Step 3: Cross multiply
    20,480.28x = 30,732.37 × 8,633.33
  4. Step 4: Simplify right side
    20,480.28x = 265,322,691.89
  5. Step 5: Solve for x
    x = 265,322,691.89/20,480.28
  6. Step 6: Final answer
    x = 12,955.03

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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.