Home / 20,216.54-30,325.92-6,178.70

Finding the Fourth Proportional to 20,216.54, 30,325.92 and 6,178.70

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Solution

The fourth proportional to 20,216.54, 30,325.92 and 6,178.70 is: 9,268.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.54 : 30,325.92 = 6,178.70 : x
  2. Step 2: Convert to fraction form
    20,216.54/30,325.92 = 6,178.70/x
  3. Step 3: Cross multiply
    20,216.54x = 30,325.92 × 6,178.70
  4. Step 4: Simplify right side
    20,216.54x = 187,374,761.90
  5. Step 5: Solve for x
    x = 187,374,761.90/20,216.54
  6. Step 6: Final answer
    x = 9,268.39

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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.