Home / 27,679.44-38,197.08-15,104.40

Finding the Fourth Proportional to 27,679.44, 38,197.08 and 15,104.40

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Solution

The fourth proportional to 27,679.44, 38,197.08 and 15,104.40 is: 20,843.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,679.44 : 38,197.08 = 15,104.40 : x
  2. Step 2: Convert to fraction form
    27,679.44/38,197.08 = 15,104.40/x
  3. Step 3: Cross multiply
    27,679.44x = 38,197.08 × 15,104.40
  4. Step 4: Simplify right side
    27,679.44x = 576,943,975.15
  5. Step 5: Solve for x
    x = 576,943,975.15/27,679.44
  6. Step 6: Final answer
    x = 20,843.77

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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.