Home / 33,118.87-45,705.21-18,974.45

Finding the Fourth Proportional to 33,118.87, 45,705.21 and 18,974.45

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Solution

The fourth proportional to 33,118.87, 45,705.21 and 18,974.45 is: 26,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,118.87 : 45,705.21 = 18,974.45 : x
  2. Step 2: Convert to fraction form
    33,118.87/45,705.21 = 18,974.45/x
  3. Step 3: Cross multiply
    33,118.87x = 45,705.21 × 18,974.45
  4. Step 4: Simplify right side
    33,118.87x = 867,230,993.36
  5. Step 5: Solve for x
    x = 867,230,993.36/33,118.87
  6. Step 6: Final answer
    x = 26,185.40

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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.