Home / 20,236.30-30,354.45-6,385.30

Finding the Fourth Proportional to 20,236.30, 30,354.45 and 6,385.30

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Solution

The fourth proportional to 20,236.30, 30,354.45 and 6,385.30 is: 9,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.30 : 30,354.45 = 6,385.30 : x
  2. Step 2: Convert to fraction form
    20,236.30/30,354.45 = 6,385.30/x
  3. Step 3: Cross multiply
    20,236.30x = 30,354.45 × 6,385.30
  4. Step 4: Simplify right side
    20,236.30x = 193,822,269.59
  5. Step 5: Solve for x
    x = 193,822,269.59/20,236.30
  6. Step 6: Final answer
    x = 9,577.95

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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.