Home / 19,240.88-28,840.30-12,224.03

Finding the Fourth Proportional to 19,240.88, 28,840.30 and 12,224.03

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Solution

The fourth proportional to 19,240.88, 28,840.30 and 12,224.03 is: 18,322.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240.88 : 28,840.30 = 12,224.03 : x
  2. Step 2: Convert to fraction form
    19,240.88/28,840.30 = 12,224.03/x
  3. Step 3: Cross multiply
    19,240.88x = 28,840.30 × 12,224.03
  4. Step 4: Simplify right side
    19,240.88x = 352,544,517.65
  5. Step 5: Solve for x
    x = 352,544,517.65/19,240.88
  6. Step 6: Final answer
    x = 18,322.69

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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.