Home / 39,757.44-54,865.69-21,608.16

Finding the Fourth Proportional to 39,757.44, 54,865.69 and 21,608.16

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Solution

The fourth proportional to 39,757.44, 54,865.69 and 21,608.16 is: 29,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,757.44 : 54,865.69 = 21,608.16 : x
  2. Step 2: Convert to fraction form
    39,757.44/54,865.69 = 21,608.16/x
  3. Step 3: Cross multiply
    39,757.44x = 54,865.69 × 21,608.16
  4. Step 4: Simplify right side
    39,757.44x = 1,185,546,499.99
  5. Step 5: Solve for x
    x = 1,185,546,499.99/39,757.44
  6. Step 6: Final answer
    x = 29,819.49

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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.