Home / 19,815.55-29,723.97-7,338.72

Finding the Fourth Proportional to 19,815.55, 29,723.97 and 7,338.72

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Solution

The fourth proportional to 19,815.55, 29,723.97 and 7,338.72 is: 11,008.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.55 : 29,723.97 = 7,338.72 : x
  2. Step 2: Convert to fraction form
    19,815.55/29,723.97 = 7,338.72/x
  3. Step 3: Cross multiply
    19,815.55x = 29,723.97 × 7,338.72
  4. Step 4: Simplify right side
    19,815.55x = 218,135,893.12
  5. Step 5: Solve for x
    x = 218,135,893.12/19,815.55
  6. Step 6: Final answer
    x = 11,008.32

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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.