Home / 33,964.80-50,985.60-20,121.60

Finding the Fourth Proportional to 33,964.80, 50,985.60 and 20,121.60

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Solution

The fourth proportional to 33,964.80, 50,985.60 and 20,121.60 is: 30,205.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,964.80 : 50,985.60 = 20,121.60 : x
  2. Step 2: Convert to fraction form
    33,964.80/50,985.60 = 20,121.60/x
  3. Step 3: Cross multiply
    33,964.80x = 50,985.60 × 20,121.60
  4. Step 4: Simplify right side
    33,964.80x = 1,025,911,848.96
  5. Step 5: Solve for x
    x = 1,025,911,848.96/33,964.80
  6. Step 6: Final answer
    x = 30,205.15

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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.