Home / 31,779.72-43,857.18-19,202.04

Finding the Fourth Proportional to 31,779.72, 43,857.18 and 19,202.04

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Solution

The fourth proportional to 31,779.72, 43,857.18 and 19,202.04 is: 26,499.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.72 : 43,857.18 = 19,202.04 : x
  2. Step 2: Convert to fraction form
    31,779.72/43,857.18 = 19,202.04/x
  3. Step 3: Cross multiply
    31,779.72x = 43,857.18 × 19,202.04
  4. Step 4: Simplify right side
    31,779.72x = 842,147,324.65
  5. Step 5: Solve for x
    x = 842,147,324.65/31,779.72
  6. Step 6: Final answer
    x = 26,499.52

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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.