Home / 38,659.97-57,991.17-18,392.30

Finding the Fourth Proportional to 38,659.97, 57,991.17 and 18,392.30

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Solution

The fourth proportional to 38,659.97, 57,991.17 and 18,392.30 is: 27,589.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,659.97 : 57,991.17 = 18,392.30 : x
  2. Step 2: Convert to fraction form
    38,659.97/57,991.17 = 18,392.30/x
  3. Step 3: Cross multiply
    38,659.97x = 57,991.17 × 18,392.30
  4. Step 4: Simplify right side
    38,659.97x = 1,066,590,995.99
  5. Step 5: Solve for x
    x = 1,066,590,995.99/38,659.97
  6. Step 6: Final answer
    x = 27,589.03

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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.