Home / 38,629.68-53,296.47-21,631.38

Finding the Fourth Proportional to 38,629.68, 53,296.47 and 21,631.38

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Solution

The fourth proportional to 38,629.68, 53,296.47 and 21,631.38 is: 29,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,629.68 : 53,296.47 = 21,631.38 : x
  2. Step 2: Convert to fraction form
    38,629.68/53,296.47 = 21,631.38/x
  3. Step 3: Cross multiply
    38,629.68x = 53,296.47 × 21,631.38
  4. Step 4: Simplify right side
    38,629.68x = 1,152,876,195.23
  5. Step 5: Solve for x
    x = 1,152,876,195.23/38,629.68
  6. Step 6: Final answer
    x = 29,844.31

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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.