Home / 22,419.66-33,621.60-6,620.47

Finding the Fourth Proportional to 22,419.66, 33,621.60 and 6,620.47

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Solution

The fourth proportional to 22,419.66, 33,621.60 and 6,620.47 is: 9,928.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,419.66 : 33,621.60 = 6,620.47 : x
  2. Step 2: Convert to fraction form
    22,419.66/33,621.60 = 6,620.47/x
  3. Step 3: Cross multiply
    22,419.66x = 33,621.60 × 6,620.47
  4. Step 4: Simplify right side
    22,419.66x = 222,590,794.15
  5. Step 5: Solve for x
    x = 222,590,794.15/22,419.66
  6. Step 6: Final answer
    x = 9,928.38

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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.