Home / 38,629.63-57,944.45-21,089.89

Finding the Fourth Proportional to 38,629.63, 57,944.45 and 21,089.89

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Solution

The fourth proportional to 38,629.63, 57,944.45 and 21,089.89 is: 31,634.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,629.63 : 57,944.45 = 21,089.89 : x
  2. Step 2: Convert to fraction form
    38,629.63/57,944.45 = 21,089.89/x
  3. Step 3: Cross multiply
    38,629.63x = 57,944.45 × 21,089.89
  4. Step 4: Simplify right side
    38,629.63x = 1,222,042,076.61
  5. Step 5: Solve for x
    x = 1,222,042,076.61/38,629.63
  6. Step 6: Final answer
    x = 31,634.84

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.