Home / 30,168.06-41,635.74-19,828.55

Finding the Fourth Proportional to 30,168.06, 41,635.74 and 19,828.55

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Solution

The fourth proportional to 30,168.06, 41,635.74 and 19,828.55 is: 27,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.06 : 41,635.74 = 19,828.55 : x
  2. Step 2: Convert to fraction form
    30,168.06/41,635.74 = 19,828.55/x
  3. Step 3: Cross multiply
    30,168.06x = 41,635.74 × 19,828.55
  4. Step 4: Simplify right side
    30,168.06x = 825,576,144.20
  5. Step 5: Solve for x
    x = 825,576,144.20/30,168.06
  6. Step 6: Final answer
    x = 27,365.90

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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.