Home / 27,679.79-38,197.10-15,104.27

Finding the Fourth Proportional to 27,679.79, 38,197.10 and 15,104.27

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Solution

The fourth proportional to 27,679.79, 38,197.10 and 15,104.27 is: 20,843.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,679.79 : 38,197.10 = 15,104.27 : x
  2. Step 2: Convert to fraction form
    27,679.79/38,197.10 = 15,104.27/x
  3. Step 3: Cross multiply
    27,679.79x = 38,197.10 × 15,104.27
  4. Step 4: Simplify right side
    27,679.79x = 576,939,236.10
  5. Step 5: Solve for x
    x = 576,939,236.10/27,679.79
  6. Step 6: Final answer
    x = 20,843.34

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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.