Home / 27,375.30-37,778.13-15,111.09

Finding the Fourth Proportional to 27,375.30, 37,778.13 and 15,111.09

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Solution

The fourth proportional to 27,375.30, 37,778.13 and 15,111.09 is: 20,853.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,375.30 : 37,778.13 = 15,111.09 : x
  2. Step 2: Convert to fraction form
    27,375.30/37,778.13 = 15,111.09/x
  3. Step 3: Cross multiply
    27,375.30x = 37,778.13 × 15,111.09
  4. Step 4: Simplify right side
    27,375.30x = 570,868,722.46
  5. Step 5: Solve for x
    x = 570,868,722.46/27,375.30
  6. Step 6: Final answer
    x = 20,853.42

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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.