Home / 20,133.26-30,179.22-6,978.44

Finding the Fourth Proportional to 20,133.26, 30,179.22 and 6,978.44

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Solution

The fourth proportional to 20,133.26, 30,179.22 and 6,978.44 is: 10,460.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.26 : 30,179.22 = 6,978.44 : x
  2. Step 2: Convert to fraction form
    20,133.26/30,179.22 = 6,978.44/x
  3. Step 3: Cross multiply
    20,133.26x = 30,179.22 × 6,978.44
  4. Step 4: Simplify right side
    20,133.26x = 210,603,876.02
  5. Step 5: Solve for x
    x = 210,603,876.02/20,133.26
  6. Step 6: Final answer
    x = 10,460.50

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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.