Home / 31,520.80-43,497.30-17,372.80

Finding the Fourth Proportional to 31,520.80, 43,497.30 and 17,372.80

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Solution

The fourth proportional to 31,520.80, 43,497.30 and 17,372.80 is: 23,973.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,520.80 : 43,497.30 = 17,372.80 : x
  2. Step 2: Convert to fraction form
    31,520.80/43,497.30 = 17,372.80/x
  3. Step 3: Cross multiply
    31,520.80x = 43,497.30 × 17,372.80
  4. Step 4: Simplify right side
    31,520.80x = 755,669,893.44
  5. Step 5: Solve for x
    x = 755,669,893.44/31,520.80
  6. Step 6: Final answer
    x = 23,973.69

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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.