Home / 38,972.92-53,782.60-21,067.86

Finding the Fourth Proportional to 38,972.92, 53,782.60 and 21,067.86

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Solution

The fourth proportional to 38,972.92, 53,782.60 and 21,067.86 is: 29,073.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,972.92 : 53,782.60 = 21,067.86 : x
  2. Step 2: Convert to fraction form
    38,972.92/53,782.60 = 21,067.86/x
  3. Step 3: Cross multiply
    38,972.92x = 53,782.60 × 21,067.86
  4. Step 4: Simplify right side
    38,972.92x = 1,133,084,287.24
  5. Step 5: Solve for x
    x = 1,133,084,287.24/38,972.92
  6. Step 6: Final answer
    x = 29,073.63

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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.