Home / 33,120.78-49,670.64-10,930.02

Finding the Fourth Proportional to 33,120.78, 49,670.64 and 10,930.02

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Solution

The fourth proportional to 33,120.78, 49,670.64 and 10,930.02 is: 16,391.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,120.78 : 49,670.64 = 10,930.02 : x
  2. Step 2: Convert to fraction form
    33,120.78/49,670.64 = 10,930.02/x
  3. Step 3: Cross multiply
    33,120.78x = 49,670.64 × 10,930.02
  4. Step 4: Simplify right side
    33,120.78x = 542,901,088.61
  5. Step 5: Solve for x
    x = 542,901,088.61/33,120.78
  6. Step 6: Final answer
    x = 16,391.56

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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.