Home / 20,480.28-30,718.24-7,330.92

Finding the Fourth Proportional to 20,480.28, 30,718.24 and 7,330.92

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Solution

The fourth proportional to 20,480.28, 30,718.24 and 7,330.92 is: 10,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480.28 : 30,718.24 = 7,330.92 : x
  2. Step 2: Convert to fraction form
    20,480.28/30,718.24 = 7,330.92/x
  3. Step 3: Cross multiply
    20,480.28x = 30,718.24 × 7,330.92
  4. Step 4: Simplify right side
    20,480.28x = 225,192,959.98
  5. Step 5: Solve for x
    x = 225,192,959.98/20,480.28
  6. Step 6: Final answer
    x = 10,995.60

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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.