Home / 27,745.13-38,288.27-15,169.88

Finding the Fourth Proportional to 27,745.13, 38,288.27 and 15,169.88

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Solution

The fourth proportional to 27,745.13, 38,288.27 and 15,169.88 is: 20,934.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,745.13 : 38,288.27 = 15,169.88 : x
  2. Step 2: Convert to fraction form
    27,745.13/38,288.27 = 15,169.88/x
  3. Step 3: Cross multiply
    27,745.13x = 38,288.27 × 15,169.88
  4. Step 4: Simplify right side
    27,745.13x = 580,828,307.79
  5. Step 5: Solve for x
    x = 580,828,307.79/27,745.13
  6. Step 6: Final answer
    x = 20,934.43

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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.