Home / 20,313.55-30,474.88-7,166.03

Finding the Fourth Proportional to 20,313.55, 30,474.88 and 7,166.03

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Solution

The fourth proportional to 20,313.55, 30,474.88 and 7,166.03 is: 10,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,313.55 : 30,474.88 = 7,166.03 : x
  2. Step 2: Convert to fraction form
    20,313.55/30,474.88 = 7,166.03/x
  3. Step 3: Cross multiply
    20,313.55x = 30,474.88 × 7,166.03
  4. Step 4: Simplify right side
    20,313.55x = 218,383,904.33
  5. Step 5: Solve for x
    x = 218,383,904.33/20,313.55
  6. Step 6: Final answer
    x = 10,750.65

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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.