Home / 39,571.72-54,608.98-21,667.84

Finding the Fourth Proportional to 39,571.72, 54,608.98 and 21,667.84

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Solution

The fourth proportional to 39,571.72, 54,608.98 and 21,667.84 is: 29,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,571.72 : 54,608.98 = 21,667.84 : x
  2. Step 2: Convert to fraction form
    39,571.72/54,608.98 = 21,667.84/x
  3. Step 3: Cross multiply
    39,571.72x = 54,608.98 × 21,667.84
  4. Step 4: Simplify right side
    39,571.72x = 1,183,258,641.20
  5. Step 5: Solve for x
    x = 1,183,258,641.20/39,571.72
  6. Step 6: Final answer
    x = 29,901.62

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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.