Home / 20,236.38-30,333.78-7,753.02

Finding the Fourth Proportional to 20,236.38, 30,333.78 and 7,753.02

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Solution

The fourth proportional to 20,236.38, 30,333.78 and 7,753.02 is: 11,621.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.38 : 30,333.78 = 7,753.02 : x
  2. Step 2: Convert to fraction form
    20,236.38/30,333.78 = 7,753.02/x
  3. Step 3: Cross multiply
    20,236.38x = 30,333.78 × 7,753.02
  4. Step 4: Simplify right side
    20,236.38x = 235,178,403.02
  5. Step 5: Solve for x
    x = 235,178,403.02/20,236.38
  6. Step 6: Final answer
    x = 11,621.56

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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.