Home / 38,786.97-53,523.27-21,790.35

Finding the Fourth Proportional to 38,786.97, 53,523.27 and 21,790.35

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Solution

The fourth proportional to 38,786.97, 53,523.27 and 21,790.35 is: 30,069.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,786.97 : 53,523.27 = 21,790.35 : x
  2. Step 2: Convert to fraction form
    38,786.97/53,523.27 = 21,790.35/x
  3. Step 3: Cross multiply
    38,786.97x = 53,523.27 × 21,790.35
  4. Step 4: Simplify right side
    38,786.97x = 1,166,290,786.44
  5. Step 5: Solve for x
    x = 1,166,290,786.44/38,786.97
  6. Step 6: Final answer
    x = 30,069.14

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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.