Home / 20,179.38-30,270.93-5,388.30

Finding the Fourth Proportional to 20,179.38, 30,270.93 and 5,388.30

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Solution

The fourth proportional to 20,179.38, 30,270.93 and 5,388.30 is: 8,082.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.38 : 30,270.93 = 5,388.30 : x
  2. Step 2: Convert to fraction form
    20,179.38/30,270.93 = 5,388.30/x
  3. Step 3: Cross multiply
    20,179.38x = 30,270.93 × 5,388.30
  4. Step 4: Simplify right side
    20,179.38x = 163,108,852.12
  5. Step 5: Solve for x
    x = 163,108,852.12/20,179.38
  6. Step 6: Final answer
    x = 8,082.95

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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.