Home / 28,305.24-38,993.72-19,791.43

Finding the Fourth Proportional to 28,305.24, 38,993.72 and 19,791.43

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Solution

The fourth proportional to 28,305.24, 38,993.72 and 19,791.43 is: 27,264.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.24 : 38,993.72 = 19,791.43 : x
  2. Step 2: Convert to fraction form
    28,305.24/38,993.72 = 19,791.43/x
  3. Step 3: Cross multiply
    28,305.24x = 38,993.72 × 19,791.43
  4. Step 4: Simplify right side
    28,305.24x = 771,741,283.38
  5. Step 5: Solve for x
    x = 771,741,283.38/28,305.24
  6. Step 6: Final answer
    x = 27,264.97

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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.