Home / 19,912.22-29,808.93-12,097.34

Finding the Fourth Proportional to 19,912.22, 29,808.93 and 12,097.34

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Solution

The fourth proportional to 19,912.22, 29,808.93 and 12,097.34 is: 18,109.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.22 : 29,808.93 = 12,097.34 : x
  2. Step 2: Convert to fraction form
    19,912.22/29,808.93 = 12,097.34/x
  3. Step 3: Cross multiply
    19,912.22x = 29,808.93 × 12,097.34
  4. Step 4: Simplify right side
    19,912.22x = 360,608,761.25
  5. Step 5: Solve for x
    x = 360,608,761.25/19,912.22
  6. Step 6: Final answer
    x = 18,109.92

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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.