Home / 39,661.23-54,789.44-31,692.99

Finding the Fourth Proportional to 39,661.23, 54,789.44 and 31,692.99

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Solution

The fourth proportional to 39,661.23, 54,789.44 and 31,692.99 is: 43,781.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,661.23 : 54,789.44 = 31,692.99 : x
  2. Step 2: Convert to fraction form
    39,661.23/54,789.44 = 31,692.99/x
  3. Step 3: Cross multiply
    39,661.23x = 54,789.44 × 31,692.99
  4. Step 4: Simplify right side
    39,661.23x = 1,736,441,015.56
  5. Step 5: Solve for x
    x = 1,736,441,015.56/39,661.23
  6. Step 6: Final answer
    x = 43,781.82

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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.