Home / 33,990.83-50,928.60-20,815.64

Finding the Fourth Proportional to 33,990.83, 50,928.60 and 20,815.64

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Solution

The fourth proportional to 33,990.83, 50,928.60 and 20,815.64 is: 31,188.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,990.83 : 50,928.60 = 20,815.64 : x
  2. Step 2: Convert to fraction form
    33,990.83/50,928.60 = 20,815.64/x
  3. Step 3: Cross multiply
    33,990.83x = 50,928.60 × 20,815.64
  4. Step 4: Simplify right side
    33,990.83x = 1,060,111,403.30
  5. Step 5: Solve for x
    x = 1,060,111,403.30/33,990.83
  6. Step 6: Final answer
    x = 31,188.16

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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.