Home / 19,791.38-27,311.48-10,838.65

Finding the Fourth Proportional to 19,791.38, 27,311.48 and 10,838.65

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Solution

The fourth proportional to 19,791.38, 27,311.48 and 10,838.65 is: 14,956.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791.38 : 27,311.48 = 10,838.65 : x
  2. Step 2: Convert to fraction form
    19,791.38/27,311.48 = 10,838.65/x
  3. Step 3: Cross multiply
    19,791.38x = 27,311.48 × 10,838.65
  4. Step 4: Simplify right side
    19,791.38x = 296,019,436.14
  5. Step 5: Solve for x
    x = 296,019,436.14/19,791.38
  6. Step 6: Final answer
    x = 14,956.99

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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.