Home / 20,049.20-30,057.78-9,513.92

Finding the Fourth Proportional to 20,049.20, 30,057.78 and 9,513.92

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Solution

The fourth proportional to 20,049.20, 30,057.78 and 9,513.92 is: 14,263.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.20 : 30,057.78 = 9,513.92 : x
  2. Step 2: Convert to fraction form
    20,049.20/30,057.78 = 9,513.92/x
  3. Step 3: Cross multiply
    20,049.20x = 30,057.78 × 9,513.92
  4. Step 4: Simplify right side
    20,049.20x = 285,967,314.30
  5. Step 5: Solve for x
    x = 285,967,314.30/20,049.20
  6. Step 6: Final answer
    x = 14,263.28

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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.