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Finding the Fourth Proportional to 33,230.10, 49,881.60 and 20,764.20

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Solution

The fourth proportional to 33,230.10, 49,881.60 and 20,764.20 is: 31,169.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,230.10 : 49,881.60 = 20,764.20 : x
  2. Step 2: Convert to fraction form
    33,230.10/49,881.60 = 20,764.20/x
  3. Step 3: Cross multiply
    33,230.10x = 49,881.60 × 20,764.20
  4. Step 4: Simplify right side
    33,230.10x = 1,035,751,518.72
  5. Step 5: Solve for x
    x = 1,035,751,518.72/33,230.10
  6. Step 6: Final answer
    x = 31,169.08

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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.