Home / 19,294.05-28,942.19-7,447.89

Finding the Fourth Proportional to 19,294.05, 28,942.19 and 7,447.89

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Solution

The fourth proportional to 19,294.05, 28,942.19 and 7,447.89 is: 11,172.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,294.05 : 28,942.19 = 7,447.89 : x
  2. Step 2: Convert to fraction form
    19,294.05/28,942.19 = 7,447.89/x
  3. Step 3: Cross multiply
    19,294.05x = 28,942.19 × 7,447.89
  4. Step 4: Simplify right side
    19,294.05x = 215,558,193.74
  5. Step 5: Solve for x
    x = 215,558,193.74/19,294.05
  6. Step 6: Final answer
    x = 11,172.26

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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.