Home / 20,316.11-30,474.78-5,525.34

Finding the Fourth Proportional to 20,316.11, 30,474.78 and 5,525.34

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Solution

The fourth proportional to 20,316.11, 30,474.78 and 5,525.34 is: 8,288.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.11 : 30,474.78 = 5,525.34 : x
  2. Step 2: Convert to fraction form
    20,316.11/30,474.78 = 5,525.34/x
  3. Step 3: Cross multiply
    20,316.11x = 30,474.78 × 5,525.34
  4. Step 4: Simplify right side
    20,316.11x = 168,383,520.93
  5. Step 5: Solve for x
    x = 168,383,520.93/20,316.11
  6. Step 6: Final answer
    x = 8,288.18

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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.