Home / 31,630.82-43,650.57-18,201.80

Finding the Fourth Proportional to 31,630.82, 43,650.57 and 18,201.80

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Solution

The fourth proportional to 31,630.82, 43,650.57 and 18,201.80 is: 25,118.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,630.82 : 43,650.57 = 18,201.80 : x
  2. Step 2: Convert to fraction form
    31,630.82/43,650.57 = 18,201.80/x
  3. Step 3: Cross multiply
    31,630.82x = 43,650.57 × 18,201.80
  4. Step 4: Simplify right side
    31,630.82x = 794,518,726.77
  5. Step 5: Solve for x
    x = 794,518,726.77/31,630.82
  6. Step 6: Final answer
    x = 25,118.50

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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.