Home / 38,163.72-52,668.96-21,169.64

Finding the Fourth Proportional to 38,163.72, 52,668.96 and 21,169.64

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Solution

The fourth proportional to 38,163.72, 52,668.96 and 21,169.64 is: 29,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,163.72 : 52,668.96 = 21,169.64 : x
  2. Step 2: Convert to fraction form
    38,163.72/52,668.96 = 21,169.64/x
  3. Step 3: Cross multiply
    38,163.72x = 52,668.96 × 21,169.64
  4. Step 4: Simplify right side
    38,163.72x = 1,114,982,922.37
  5. Step 5: Solve for x
    x = 1,114,982,922.37/38,163.72
  6. Step 6: Final answer
    x = 29,215.78

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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.