Home / 20,204.78-30,308.34-6,353.78

Finding the Fourth Proportional to 20,204.78, 30,308.34 and 6,353.78

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Solution

The fourth proportional to 20,204.78, 30,308.34 and 6,353.78 is: 9,531.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.78 : 30,308.34 = 6,353.78 : x
  2. Step 2: Convert to fraction form
    20,204.78/30,308.34 = 6,353.78/x
  3. Step 3: Cross multiply
    20,204.78x = 30,308.34 × 6,353.78
  4. Step 4: Simplify right side
    20,204.78x = 192,572,524.53
  5. Step 5: Solve for x
    x = 192,572,524.53/20,204.78
  6. Step 6: Final answer
    x = 9,531.04

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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.