Home / 27,722.70-38,243.99-18,158.45

Finding the Fourth Proportional to 27,722.70, 38,243.99 and 18,158.45

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Solution

The fourth proportional to 27,722.70, 38,243.99 and 18,158.45 is: 25,049.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,722.70 : 38,243.99 = 18,158.45 : x
  2. Step 2: Convert to fraction form
    27,722.70/38,243.99 = 18,158.45/x
  3. Step 3: Cross multiply
    27,722.70x = 38,243.99 × 18,158.45
  4. Step 4: Simplify right side
    27,722.70x = 694,451,582.97
  5. Step 5: Solve for x
    x = 694,451,582.97/27,722.70
  6. Step 6: Final answer
    x = 25,049.92

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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.