Home / 27,768.66-38,321.71-15,193.41

Finding the Fourth Proportional to 27,768.66, 38,321.71 and 15,193.41

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Solution

The fourth proportional to 27,768.66, 38,321.71 and 15,193.41 is: 20,967.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,768.66 : 38,321.71 = 15,193.41 : x
  2. Step 2: Convert to fraction form
    27,768.66/38,321.71 = 15,193.41/x
  3. Step 3: Cross multiply
    27,768.66x = 38,321.71 × 15,193.41
  4. Step 4: Simplify right side
    27,768.66x = 582,237,270.24
  5. Step 5: Solve for x
    x = 582,237,270.24/27,768.66
  6. Step 6: Final answer
    x = 20,967.43

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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.