Home / 27,910.75-38,516.85-15,336.31

Finding the Fourth Proportional to 27,910.75, 38,516.85 and 15,336.31

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Solution

The fourth proportional to 27,910.75, 38,516.85 and 15,336.31 is: 21,164.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,910.75 : 38,516.85 = 15,336.31 : x
  2. Step 2: Convert to fraction form
    27,910.75/38,516.85 = 15,336.31/x
  3. Step 3: Cross multiply
    27,910.75x = 38,516.85 × 15,336.31
  4. Step 4: Simplify right side
    27,910.75x = 590,706,351.82
  5. Step 5: Solve for x
    x = 590,706,351.82/27,910.75
  6. Step 6: Final answer
    x = 21,164.12

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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.