Home / 38,996.72-53,815.48-21,091.74

Finding the Fourth Proportional to 38,996.72, 53,815.48 and 21,091.74

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Solution

The fourth proportional to 38,996.72, 53,815.48 and 21,091.74 is: 29,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,996.72 : 53,815.48 = 21,091.74 : x
  2. Step 2: Convert to fraction form
    38,996.72/53,815.48 = 21,091.74/x
  3. Step 3: Cross multiply
    38,996.72x = 53,815.48 × 21,091.74
  4. Step 4: Simplify right side
    38,996.72x = 1,135,062,112.14
  5. Step 5: Solve for x
    x = 1,135,062,112.14/38,996.72
  6. Step 6: Final answer
    x = 29,106.60

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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.