Home / 43,678.31-65,458.19-19,956.44

Finding the Fourth Proportional to 43,678.31, 65,458.19 and 19,956.44

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Solution

The fourth proportional to 43,678.31, 65,458.19 and 19,956.44 is: 29,907.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,678.31 : 65,458.19 = 19,956.44 : x
  2. Step 2: Convert to fraction form
    43,678.31/65,458.19 = 19,956.44/x
  3. Step 3: Cross multiply
    43,678.31x = 65,458.19 × 19,956.44
  4. Step 4: Simplify right side
    43,678.31x = 1,306,312,654.78
  5. Step 5: Solve for x
    x = 1,306,312,654.78/43,678.31
  6. Step 6: Final answer
    x = 29,907.59

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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.