Home / 39,759.86-54,869.04-21,610.58

Finding the Fourth Proportional to 39,759.86, 54,869.04 and 21,610.58

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Solution

The fourth proportional to 39,759.86, 54,869.04 and 21,610.58 is: 29,822.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,759.86 : 54,869.04 = 21,610.58 : x
  2. Step 2: Convert to fraction form
    39,759.86/54,869.04 = 21,610.58/x
  3. Step 3: Cross multiply
    39,759.86x = 54,869.04 × 21,610.58
  4. Step 4: Simplify right side
    39,759.86x = 1,185,751,778.44
  5. Step 5: Solve for x
    x = 1,185,751,778.44/39,759.86
  6. Step 6: Final answer
    x = 29,822.84

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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.