Home / 20,546.20-30,770.70-13,936.60

Finding the Fourth Proportional to 20,546.20, 30,770.70 and 13,936.60

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Solution

The fourth proportional to 20,546.20, 30,770.70 and 13,936.60 is: 20,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,546.20 : 30,770.70 = 13,936.60 : x
  2. Step 2: Convert to fraction form
    20,546.20/30,770.70 = 13,936.60/x
  3. Step 3: Cross multiply
    20,546.20x = 30,770.70 × 13,936.60
  4. Step 4: Simplify right side
    20,546.20x = 428,838,937.62
  5. Step 5: Solve for x
    x = 428,838,937.62/20,546.20
  6. Step 6: Final answer
    x = 20,871.93

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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.