Home / 38,629.26-53,295.90-21,630.96

Finding the Fourth Proportional to 38,629.26, 53,295.90 and 21,630.96

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Solution

The fourth proportional to 38,629.26, 53,295.90 and 21,630.96 is: 29,843.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,629.26 : 53,295.90 = 21,630.96 : x
  2. Step 2: Convert to fraction form
    38,629.26/53,295.90 = 21,630.96/x
  3. Step 3: Cross multiply
    38,629.26x = 53,295.90 × 21,630.96
  4. Step 4: Simplify right side
    38,629.26x = 1,152,841,481.06
  5. Step 5: Solve for x
    x = 1,152,841,481.06/38,629.26
  6. Step 6: Final answer
    x = 29,843.74

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Similar ratio
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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.