Home / 43,991.82-66,012.57-20,618.46

Finding the Fourth Proportional to 43,991.82, 66,012.57 and 20,618.46

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Solution

The fourth proportional to 43,991.82, 66,012.57 and 20,618.46 is: 30,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,991.82 : 66,012.57 = 20,618.46 : x
  2. Step 2: Convert to fraction form
    43,991.82/66,012.57 = 20,618.46/x
  3. Step 3: Cross multiply
    43,991.82x = 66,012.57 × 20,618.46
  4. Step 4: Simplify right side
    43,991.82x = 1,361,077,534.04
  5. Step 5: Solve for x
    x = 1,361,077,534.04/43,991.82
  6. Step 6: Final answer
    x = 30,939.33

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1.5x scale

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.