Home / 20,251.14-30,366.30-9,151.81

Finding the Fourth Proportional to 20,251.14, 30,366.30 and 9,151.81

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Solution

The fourth proportional to 20,251.14, 30,366.30 and 9,151.81 is: 13,723.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.14 : 30,366.30 = 9,151.81 : x
  2. Step 2: Convert to fraction form
    20,251.14/30,366.30 = 9,151.81/x
  3. Step 3: Cross multiply
    20,251.14x = 30,366.30 × 9,151.81
  4. Step 4: Simplify right side
    20,251.14x = 277,906,608.00
  5. Step 5: Solve for x
    x = 277,906,608.00/20,251.14
  6. Step 6: Final answer
    x = 13,723.01

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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.