Home / 20,284.08-30,422.61-5,489.55

Finding the Fourth Proportional to 20,284.08, 30,422.61 and 5,489.55

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Solution

The fourth proportional to 20,284.08, 30,422.61 and 5,489.55 is: 8,233.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.08 : 30,422.61 = 5,489.55 : x
  2. Step 2: Convert to fraction form
    20,284.08/30,422.61 = 5,489.55/x
  3. Step 3: Cross multiply
    20,284.08x = 30,422.61 × 5,489.55
  4. Step 4: Simplify right side
    20,284.08x = 167,006,438.73
  5. Step 5: Solve for x
    x = 167,006,438.73/20,284.08
  6. Step 6: Final answer
    x = 8,233.38

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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.