Home / 31,679.32-47,531.70-11,963.44

Finding the Fourth Proportional to 31,679.32, 47,531.70 and 11,963.44

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Solution

The fourth proportional to 31,679.32, 47,531.70 and 11,963.44 is: 17,949.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,679.32 : 47,531.70 = 11,963.44 : x
  2. Step 2: Convert to fraction form
    31,679.32/47,531.70 = 11,963.44/x
  3. Step 3: Cross multiply
    31,679.32x = 47,531.70 × 11,963.44
  4. Step 4: Simplify right side
    31,679.32x = 568,642,641.05
  5. Step 5: Solve for x
    x = 568,642,641.05/31,679.32
  6. Step 6: Final answer
    x = 17,949.96

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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.