Home / 38,481.36-53,128.32-29,511.60

Finding the Fourth Proportional to 38,481.36, 53,128.32 and 29,511.60

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Solution

The fourth proportional to 38,481.36, 53,128.32 and 29,511.60 is: 40,744.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,481.36 : 53,128.32 = 29,511.60 : x
  2. Step 2: Convert to fraction form
    38,481.36/53,128.32 = 29,511.60/x
  3. Step 3: Cross multiply
    38,481.36x = 53,128.32 × 29,511.60
  4. Step 4: Simplify right side
    38,481.36x = 1,567,901,728.51
  5. Step 5: Solve for x
    x = 1,567,901,728.51/38,481.36
  6. Step 6: Final answer
    x = 40,744.45

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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.