Home / 33,115.22-45,687.40-18,772.95

Finding the Fourth Proportional to 33,115.22, 45,687.40 and 18,772.95

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Solution

The fourth proportional to 33,115.22, 45,687.40 and 18,772.95 is: 25,900.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,115.22 : 45,687.40 = 18,772.95 : x
  2. Step 2: Convert to fraction form
    33,115.22/45,687.40 = 18,772.95/x
  3. Step 3: Cross multiply
    33,115.22x = 45,687.40 × 18,772.95
  4. Step 4: Simplify right side
    33,115.22x = 857,687,275.83
  5. Step 5: Solve for x
    x = 857,687,275.83/33,115.22
  6. Step 6: Final answer
    x = 25,900.09

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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.