Home / 39,027.86-53,858.44-21,122.86

Finding the Fourth Proportional to 39,027.86, 53,858.44 and 21,122.86

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Solution

The fourth proportional to 39,027.86, 53,858.44 and 21,122.86 is: 29,149.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,027.86 : 53,858.44 = 21,122.86 : x
  2. Step 2: Convert to fraction form
    39,027.86/53,858.44 = 21,122.86/x
  3. Step 3: Cross multiply
    39,027.86x = 53,858.44 × 21,122.86
  4. Step 4: Simplify right side
    39,027.86x = 1,137,644,287.94
  5. Step 5: Solve for x
    x = 1,137,644,287.94/39,027.86
  6. Step 6: Final answer
    x = 29,149.54

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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.