Home / 20,553.20-30,811.26-7,396.28

Finding the Fourth Proportional to 20,553.20, 30,811.26 and 7,396.28

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Solution

The fourth proportional to 20,553.20, 30,811.26 and 7,396.28 is: 11,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.20 : 30,811.26 = 7,396.28 : x
  2. Step 2: Convert to fraction form
    20,553.20/30,811.26 = 7,396.28/x
  3. Step 3: Cross multiply
    20,553.20x = 30,811.26 × 7,396.28
  4. Step 4: Simplify right side
    20,553.20x = 227,888,706.11
  5. Step 5: Solve for x
    x = 227,888,706.11/20,553.20
  6. Step 6: Final answer
    x = 11,087.75

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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.