Home / 33,811.20-50,721.60-10,435.20

Finding the Fourth Proportional to 33,811.20, 50,721.60 and 10,435.20

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Solution

The fourth proportional to 33,811.20, 50,721.60 and 10,435.20 is: 15,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,811.20 : 50,721.60 = 10,435.20 : x
  2. Step 2: Convert to fraction form
    33,811.20/50,721.60 = 10,435.20/x
  3. Step 3: Cross multiply
    33,811.20x = 50,721.60 × 10,435.20
  4. Step 4: Simplify right side
    33,811.20x = 529,290,040.32
  5. Step 5: Solve for x
    x = 529,290,040.32/33,811.20
  6. Step 6: Final answer
    x = 15,654.28

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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.