Home / 38,996.31-53,814.87-21,091.35

Finding the Fourth Proportional to 38,996.31, 53,814.87 and 21,091.35

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Solution

The fourth proportional to 38,996.31, 53,814.87 and 21,091.35 is: 29,106.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,996.31 : 53,814.87 = 21,091.35 : x
  2. Step 2: Convert to fraction form
    38,996.31/53,814.87 = 21,091.35/x
  3. Step 3: Cross multiply
    38,996.31x = 53,814.87 × 21,091.35
  4. Step 4: Simplify right side
    38,996.31x = 1,135,028,258.37
  5. Step 5: Solve for x
    x = 1,135,028,258.37/38,996.31
  6. Step 6: Final answer
    x = 29,106.04

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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.