Home / 20,546.46-30,800.49-11,172.60

Finding the Fourth Proportional to 20,546.46, 30,800.49 and 11,172.60

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Solution

The fourth proportional to 20,546.46, 30,800.49 and 11,172.60 is: 16,748.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,546.46 : 30,800.49 = 11,172.60 : x
  2. Step 2: Convert to fraction form
    20,546.46/30,800.49 = 11,172.60/x
  3. Step 3: Cross multiply
    20,546.46x = 30,800.49 × 11,172.60
  4. Step 4: Simplify right side
    20,546.46x = 344,121,554.57
  5. Step 5: Solve for x
    x = 344,121,554.57/20,546.46
  6. Step 6: Final answer
    x = 16,748.46

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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.