Home / 38,896.52-53,749.86-31,820.36

Finding the Fourth Proportional to 38,896.52, 53,749.86 and 31,820.36

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Solution

The fourth proportional to 38,896.52, 53,749.86 and 31,820.36 is: 43,971.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,896.52 : 53,749.86 = 31,820.36 : x
  2. Step 2: Convert to fraction form
    38,896.52/53,749.86 = 31,820.36/x
  3. Step 3: Cross multiply
    38,896.52x = 53,749.86 × 31,820.36
  4. Step 4: Simplify right side
    38,896.52x = 1,710,339,895.15
  5. Step 5: Solve for x
    x = 1,710,339,895.15/38,896.52
  6. Step 6: Final answer
    x = 43,971.54

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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.