Home / 31,511.44-47,275.35-11,791.54

Finding the Fourth Proportional to 31,511.44, 47,275.35 and 11,791.54

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Solution

The fourth proportional to 31,511.44, 47,275.35 and 11,791.54 is: 17,690.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.44 : 47,275.35 = 11,791.54 : x
  2. Step 2: Convert to fraction form
    31,511.44/47,275.35 = 11,791.54/x
  3. Step 3: Cross multiply
    31,511.44x = 47,275.35 × 11,791.54
  4. Step 4: Simplify right side
    31,511.44x = 557,449,180.54
  5. Step 5: Solve for x
    x = 557,449,180.54/31,511.44
  6. Step 6: Final answer
    x = 17,690.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.