Home / 28,664.33-39,559.25-15,919.97

Finding the Fourth Proportional to 28,664.33, 39,559.25 and 15,919.97

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Solution

The fourth proportional to 28,664.33, 39,559.25 and 15,919.97 is: 21,970.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664.33 : 39,559.25 = 15,919.97 : x
  2. Step 2: Convert to fraction form
    28,664.33/39,559.25 = 15,919.97/x
  3. Step 3: Cross multiply
    28,664.33x = 39,559.25 × 15,919.97
  4. Step 4: Simplify right side
    28,664.33x = 629,781,915.23
  5. Step 5: Solve for x
    x = 629,781,915.23/28,664.33
  6. Step 6: Final answer
    x = 21,970.93

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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.