Home / 31,392.26-43,323.36-21,963.86

Finding the Fourth Proportional to 31,392.26, 43,323.36 and 21,963.86

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Solution

The fourth proportional to 31,392.26, 43,323.36 and 21,963.86 is: 30,311.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,392.26 : 43,323.36 = 21,963.86 : x
  2. Step 2: Convert to fraction form
    31,392.26/43,323.36 = 21,963.86/x
  3. Step 3: Cross multiply
    31,392.26x = 43,323.36 × 21,963.86
  4. Step 4: Simplify right side
    31,392.26x = 951,548,213.77
  5. Step 5: Solve for x
    x = 951,548,213.77/31,392.26
  6. Step 6: Final answer
    x = 30,311.55

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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.