Home / 33,020.20-49,530.30-28,111.60

Finding the Fourth Proportional to 33,020.20, 49,530.30 and 28,111.60

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Solution

The fourth proportional to 33,020.20, 49,530.30 and 28,111.60 is: 42,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,020.20 : 49,530.30 = 28,111.60 : x
  2. Step 2: Convert to fraction form
    33,020.20/49,530.30 = 28,111.60/x
  3. Step 3: Cross multiply
    33,020.20x = 49,530.30 × 28,111.60
  4. Step 4: Simplify right side
    33,020.20x = 1,392,375,981.48
  5. Step 5: Solve for x
    x = 1,392,375,981.48/33,020.20
  6. Step 6: Final answer
    x = 42,167.40

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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.