Home / 38,654.11-57,989.44-11,999.51

Finding the Fourth Proportional to 38,654.11, 57,989.44 and 11,999.51

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Solution

The fourth proportional to 38,654.11, 57,989.44 and 11,999.51 is: 18,001.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,654.11 : 57,989.44 = 11,999.51 : x
  2. Step 2: Convert to fraction form
    38,654.11/57,989.44 = 11,999.51/x
  3. Step 3: Cross multiply
    38,654.11x = 57,989.44 × 11,999.51
  4. Step 4: Simplify right side
    38,654.11x = 695,844,805.18
  5. Step 5: Solve for x
    x = 695,844,805.18/38,654.11
  6. Step 6: Final answer
    x = 18,001.83

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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.