Home / 27,738.94-38,279.69-15,163.69

Finding the Fourth Proportional to 27,738.94, 38,279.69 and 15,163.69

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Solution

The fourth proportional to 27,738.94, 38,279.69 and 15,163.69 is: 20,925.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,738.94 : 38,279.69 = 15,163.69 : x
  2. Step 2: Convert to fraction form
    27,738.94/38,279.69 = 15,163.69/x
  3. Step 3: Cross multiply
    27,738.94x = 38,279.69 × 15,163.69
  4. Step 4: Simplify right side
    27,738.94x = 580,461,276.64
  5. Step 5: Solve for x
    x = 580,461,276.64/27,738.94
  6. Step 6: Final answer
    x = 20,925.86

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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.