Home / 31,664.06-43,692.69-18,235.88

Finding the Fourth Proportional to 31,664.06, 43,692.69 and 18,235.88

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Solution

The fourth proportional to 31,664.06, 43,692.69 and 18,235.88 is: 25,163.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,664.06 : 43,692.69 = 18,235.88 : x
  2. Step 2: Convert to fraction form
    31,664.06/43,692.69 = 18,235.88/x
  3. Step 3: Cross multiply
    31,664.06x = 43,692.69 × 18,235.88
  4. Step 4: Simplify right side
    31,664.06x = 796,774,859.97
  5. Step 5: Solve for x
    x = 796,774,859.97/31,664.06
  6. Step 6: Final answer
    x = 25,163.38

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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.