Home / 38,999.78-53,819.54-21,094.83

Finding the Fourth Proportional to 38,999.78, 53,819.54 and 21,094.83

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Solution

The fourth proportional to 38,999.78, 53,819.54 and 21,094.83 is: 29,110.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,999.78 : 53,819.54 = 21,094.83 : x
  2. Step 2: Convert to fraction form
    38,999.78/53,819.54 = 21,094.83/x
  3. Step 3: Cross multiply
    38,999.78x = 53,819.54 × 21,094.83
  4. Step 4: Simplify right side
    38,999.78x = 1,135,314,020.61
  5. Step 5: Solve for x
    x = 1,135,314,020.61/38,999.78
  6. Step 6: Final answer
    x = 29,110.78

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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.