Home / 20,174.33-30,261.38-5,181.39

Finding the Fourth Proportional to 20,174.33, 30,261.38 and 5,181.39

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Solution

The fourth proportional to 20,174.33, 30,261.38 and 5,181.39 is: 7,772.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174.33 : 30,261.38 = 5,181.39 : x
  2. Step 2: Convert to fraction form
    20,174.33/30,261.38 = 5,181.39/x
  3. Step 3: Cross multiply
    20,174.33x = 30,261.38 × 5,181.39
  4. Step 4: Simplify right side
    20,174.33x = 156,795,985.81
  5. Step 5: Solve for x
    x = 156,795,985.81/20,174.33
  6. Step 6: Final answer
    x = 7,772.05

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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.