Home / 39,571.70-54,608.94-21,667.80

Finding the Fourth Proportional to 39,571.70, 54,608.94 and 21,667.80

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Solution

The fourth proportional to 39,571.70, 54,608.94 and 21,667.80 is: 29,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,571.70 : 54,608.94 = 21,667.80 : x
  2. Step 2: Convert to fraction form
    39,571.70/54,608.94 = 21,667.80/x
  3. Step 3: Cross multiply
    39,571.70x = 54,608.94 × 21,667.80
  4. Step 4: Simplify right side
    39,571.70x = 1,183,255,590.13
  5. Step 5: Solve for x
    x = 1,183,255,590.13/39,571.70
  6. Step 6: Final answer
    x = 29,901.56

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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.