Home / 19,912.22-27,473.88-12,641.66

Finding the Fourth Proportional to 19,912.22, 27,473.88 and 12,641.66

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Solution

The fourth proportional to 19,912.22, 27,473.88 and 12,641.66 is: 17,442.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.22 : 27,473.88 = 12,641.66 : x
  2. Step 2: Convert to fraction form
    19,912.22/27,473.88 = 12,641.66/x
  3. Step 3: Cross multiply
    19,912.22x = 27,473.88 × 12,641.66
  4. Step 4: Simplify right side
    19,912.22x = 347,315,312.47
  5. Step 5: Solve for x
    x = 347,315,312.47/19,912.22
  6. Step 6: Final answer
    x = 17,442.32

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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.