Home / 33,051.20-49,509.60-20,532.80

Finding the Fourth Proportional to 33,051.20, 49,509.60 and 20,532.80

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Solution

The fourth proportional to 33,051.20, 49,509.60 and 20,532.80 is: 30,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,051.20 : 49,509.60 = 20,532.80 : x
  2. Step 2: Convert to fraction form
    33,051.20/49,509.60 = 20,532.80/x
  3. Step 3: Cross multiply
    33,051.20x = 49,509.60 × 20,532.80
  4. Step 4: Simplify right side
    33,051.20x = 1,016,570,714.88
  5. Step 5: Solve for x
    x = 1,016,570,714.88/33,051.20
  6. Step 6: Final answer
    x = 30,757.45

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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.