Home / 27,911-38,517.44-15,336.04

Finding the Fourth Proportional to 27,911, 38,517.44 and 15,336.04

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Solution

The fourth proportional to 27,911, 38,517.44 and 15,336.04 is: 21,163.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911 : 38,517.44 = 15,336.04 : x
  2. Step 2: Convert to fraction form
    27,911/38,517.44 = 15,336.04/x
  3. Step 3: Cross multiply
    27,911x = 38,517.44 × 15,336.04
  4. Step 4: Simplify right side
    27,911x = 590,705,000.54
  5. Step 5: Solve for x
    x = 590,705,000.54/27,911
  6. Step 6: Final answer
    x = 21,163.88

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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.