Home / 27,121.69-37,431.85-15,185.79

Finding the Fourth Proportional to 27,121.69, 37,431.85 and 15,185.79

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Solution

The fourth proportional to 27,121.69, 37,431.85 and 15,185.79 is: 20,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.69 : 37,431.85 = 15,185.79 : x
  2. Step 2: Convert to fraction form
    27,121.69/37,431.85 = 15,185.79/x
  3. Step 3: Cross multiply
    27,121.69x = 37,431.85 × 15,185.79
  4. Step 4: Simplify right side
    27,121.69x = 568,432,213.41
  5. Step 5: Solve for x
    x = 568,432,213.41/27,121.69
  6. Step 6: Final answer
    x = 20,958.58

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Double scale
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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.