Home / 20,204.28-30,311.28-6,353.28

Finding the Fourth Proportional to 20,204.28, 30,311.28 and 6,353.28

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Solution

The fourth proportional to 20,204.28, 30,311.28 and 6,353.28 is: 9,531.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.28 : 30,311.28 = 6,353.28 : x
  2. Step 2: Convert to fraction form
    20,204.28/30,311.28 = 6,353.28/x
  3. Step 3: Cross multiply
    20,204.28x = 30,311.28 × 6,353.28
  4. Step 4: Simplify right side
    20,204.28x = 192,576,049.00
  5. Step 5: Solve for x
    x = 192,576,049.00/20,204.28
  6. Step 6: Final answer
    x = 9,531.45

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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.