Home / 28,144.06-38,821.88-18,584.04

Finding the Fourth Proportional to 28,144.06, 38,821.88 and 18,584.04

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Solution

The fourth proportional to 28,144.06, 38,821.88 and 18,584.04 is: 25,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144.06 : 38,821.88 = 18,584.04 : x
  2. Step 2: Convert to fraction form
    28,144.06/38,821.88 = 18,584.04/x
  3. Step 3: Cross multiply
    28,144.06x = 38,821.88 × 18,584.04
  4. Step 4: Simplify right side
    28,144.06x = 721,467,370.80
  5. Step 5: Solve for x
    x = 721,467,370.80/28,144.06
  6. Step 6: Final answer
    x = 25,634.80

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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.