Home / 38,939.09-53,735.91-21,034.09

Finding the Fourth Proportional to 38,939.09, 53,735.91 and 21,034.09

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Solution

The fourth proportional to 38,939.09, 53,735.91 and 21,034.09 is: 29,027.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,939.09 : 53,735.91 = 21,034.09 : x
  2. Step 2: Convert to fraction form
    38,939.09/53,735.91 = 21,034.09/x
  3. Step 3: Cross multiply
    38,939.09x = 53,735.91 × 21,034.09
  4. Step 4: Simplify right side
    38,939.09x = 1,130,285,593.32
  5. Step 5: Solve for x
    x = 1,130,285,593.32/38,939.09
  6. Step 6: Final answer
    x = 29,027.02

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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.