Home / 27,761.42-38,310.81-15,186.17

Finding the Fourth Proportional to 27,761.42, 38,310.81 and 15,186.17

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Solution

The fourth proportional to 27,761.42, 38,310.81 and 15,186.17 is: 20,956.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,761.42 : 38,310.81 = 15,186.17 : x
  2. Step 2: Convert to fraction form
    27,761.42/38,310.81 = 15,186.17/x
  3. Step 3: Cross multiply
    27,761.42x = 38,310.81 × 15,186.17
  4. Step 4: Simplify right side
    27,761.42x = 581,794,473.50
  5. Step 5: Solve for x
    x = 581,794,473.50/27,761.42
  6. Step 6: Final answer
    x = 20,956.94

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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.