Home / 20,171.12-30,261.24-6,320.24

Finding the Fourth Proportional to 20,171.12, 30,261.24 and 6,320.24

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Solution

The fourth proportional to 20,171.12, 30,261.24 and 6,320.24 is: 9,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.12 : 30,261.24 = 6,320.24 : x
  2. Step 2: Convert to fraction form
    20,171.12/30,261.24 = 6,320.24/x
  3. Step 3: Cross multiply
    20,171.12x = 30,261.24 × 6,320.24
  4. Step 4: Simplify right side
    20,171.12x = 191,258,299.50
  5. Step 5: Solve for x
    x = 191,258,299.50/20,171.12
  6. Step 6: Final answer
    x = 9,481.79

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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.