Home / 27,811.17-38,339.24-19,839.56

Finding the Fourth Proportional to 27,811.17, 38,339.24 and 19,839.56

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Solution

The fourth proportional to 27,811.17, 38,339.24 and 19,839.56 is: 27,349.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,811.17 : 38,339.24 = 19,839.56 : x
  2. Step 2: Convert to fraction form
    27,811.17/38,339.24 = 19,839.56/x
  3. Step 3: Cross multiply
    27,811.17x = 38,339.24 × 19,839.56
  4. Step 4: Simplify right side
    27,811.17x = 760,633,361.44
  5. Step 5: Solve for x
    x = 760,633,361.44/27,811.17
  6. Step 6: Final answer
    x = 27,349.92

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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.