Home / 27,642.87-38,162.97-18,227.85

Finding the Fourth Proportional to 27,642.87, 38,162.97 and 18,227.85

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Solution

The fourth proportional to 27,642.87, 38,162.97 and 18,227.85 is: 25,164.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,642.87 : 38,162.97 = 18,227.85 : x
  2. Step 2: Convert to fraction form
    27,642.87/38,162.97 = 18,227.85/x
  3. Step 3: Cross multiply
    27,642.87x = 38,162.97 × 18,227.85
  4. Step 4: Simplify right side
    27,642.87x = 695,628,892.71
  5. Step 5: Solve for x
    x = 695,628,892.71/27,642.87
  6. Step 6: Final answer
    x = 25,164.86

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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.