Home / 31,563.98-43,539.92-20,229.44

Finding the Fourth Proportional to 31,563.98, 43,539.92 and 20,229.44

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Solution

The fourth proportional to 31,563.98, 43,539.92 and 20,229.44 is: 27,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,563.98 : 43,539.92 = 20,229.44 : x
  2. Step 2: Convert to fraction form
    31,563.98/43,539.92 = 20,229.44/x
  3. Step 3: Cross multiply
    31,563.98x = 43,539.92 × 20,229.44
  4. Step 4: Simplify right side
    31,563.98x = 880,788,199.24
  5. Step 5: Solve for x
    x = 880,788,199.24/31,563.98
  6. Step 6: Final answer
    x = 27,904.85

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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.