Home / 19,170.23-28,743.44-8,071.20

Finding the Fourth Proportional to 19,170.23, 28,743.44 and 8,071.20

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Solution

The fourth proportional to 19,170.23, 28,743.44 and 8,071.20 is: 12,101.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.23 : 28,743.44 = 8,071.20 : x
  2. Step 2: Convert to fraction form
    19,170.23/28,743.44 = 8,071.20/x
  3. Step 3: Cross multiply
    19,170.23x = 28,743.44 × 8,071.20
  4. Step 4: Simplify right side
    19,170.23x = 231,994,012.57
  5. Step 5: Solve for x
    x = 231,994,012.57/19,170.23
  6. Step 6: Final answer
    x = 12,101.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.