Home / 27,761.44-38,310.72-15,186.16

Finding the Fourth Proportional to 27,761.44, 38,310.72 and 15,186.16

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Solution

The fourth proportional to 27,761.44, 38,310.72 and 15,186.16 is: 20,956.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,761.44 : 38,310.72 = 15,186.16 : x
  2. Step 2: Convert to fraction form
    27,761.44/38,310.72 = 15,186.16/x
  3. Step 3: Cross multiply
    27,761.44x = 38,310.72 × 15,186.16
  4. Step 4: Simplify right side
    27,761.44x = 581,792,723.64
  5. Step 5: Solve for x
    x = 581,792,723.64/27,761.44
  6. Step 6: Final answer
    x = 20,956.86

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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.