Home / 31,554.20-43,539.72-17,940.80

Finding the Fourth Proportional to 31,554.20, 43,539.72 and 17,940.80

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Solution

The fourth proportional to 31,554.20, 43,539.72 and 17,940.80 is: 24,755.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,554.20 : 43,539.72 = 17,940.80 : x
  2. Step 2: Convert to fraction form
    31,554.20/43,539.72 = 17,940.80/x
  3. Step 3: Cross multiply
    31,554.20x = 43,539.72 × 17,940.80
  4. Step 4: Simplify right side
    31,554.20x = 781,137,408.58
  5. Step 5: Solve for x
    x = 781,137,408.58/31,554.20
  6. Step 6: Final answer
    x = 24,755.42

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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.