Home / 27,615.42-38,109.28-15,040.17

Finding the Fourth Proportional to 27,615.42, 38,109.28 and 15,040.17

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Solution

The fourth proportional to 27,615.42, 38,109.28 and 15,040.17 is: 20,755.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,615.42 : 38,109.28 = 15,040.17 : x
  2. Step 2: Convert to fraction form
    27,615.42/38,109.28 = 15,040.17/x
  3. Step 3: Cross multiply
    27,615.42x = 38,109.28 × 15,040.17
  4. Step 4: Simplify right side
    27,615.42x = 573,170,049.78
  5. Step 5: Solve for x
    x = 573,170,049.78/27,615.42
  6. Step 6: Final answer
    x = 20,755.43

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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.