Home / 33,179.95-45,785.01-20,431.09

Finding the Fourth Proportional to 33,179.95, 45,785.01 and 20,431.09

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Solution

The fourth proportional to 33,179.95, 45,785.01 and 20,431.09 is: 28,192.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,179.95 : 45,785.01 = 20,431.09 : x
  2. Step 2: Convert to fraction form
    33,179.95/45,785.01 = 20,431.09/x
  3. Step 3: Cross multiply
    33,179.95x = 45,785.01 × 20,431.09
  4. Step 4: Simplify right side
    33,179.95x = 935,437,659.96
  5. Step 5: Solve for x
    x = 935,437,659.96/33,179.95
  6. Step 6: Final answer
    x = 28,192.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.