Home / 28,128.98-38,819.43-16,194.03

Finding the Fourth Proportional to 28,128.98, 38,819.43 and 16,194.03

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Solution

The fourth proportional to 28,128.98, 38,819.43 and 16,194.03 is: 22,348.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,128.98 : 38,819.43 = 16,194.03 : x
  2. Step 2: Convert to fraction form
    28,128.98/38,819.43 = 16,194.03/x
  3. Step 3: Cross multiply
    28,128.98x = 38,819.43 × 16,194.03
  4. Step 4: Simplify right side
    28,128.98x = 628,643,014.00
  5. Step 5: Solve for x
    x = 628,643,014.00/28,128.98
  6. Step 6: Final answer
    x = 22,348.59

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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.