Home / 27,128.76-37,434.32-15,190.17

Finding the Fourth Proportional to 27,128.76, 37,434.32 and 15,190.17

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Solution

The fourth proportional to 27,128.76, 37,434.32 and 15,190.17 is: 20,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.76 : 37,434.32 = 15,190.17 : x
  2. Step 2: Convert to fraction form
    27,128.76/37,434.32 = 15,190.17/x
  3. Step 3: Cross multiply
    27,128.76x = 37,434.32 × 15,190.17
  4. Step 4: Simplify right side
    27,128.76x = 568,633,608.68
  5. Step 5: Solve for x
    x = 568,633,608.68/27,128.76
  6. Step 6: Final answer
    x = 20,960.55

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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.