Home / 19,789.65-29,675.25-11,472.05

Finding the Fourth Proportional to 19,789.65, 29,675.25 and 11,472.05

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Solution

The fourth proportional to 19,789.65, 29,675.25 and 11,472.05 is: 17,202.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.65 : 29,675.25 = 11,472.05 : x
  2. Step 2: Convert to fraction form
    19,789.65/29,675.25 = 11,472.05/x
  3. Step 3: Cross multiply
    19,789.65x = 29,675.25 × 11,472.05
  4. Step 4: Simplify right side
    19,789.65x = 340,435,760.37
  5. Step 5: Solve for x
    x = 340,435,760.37/19,789.65
  6. Step 6: Final answer
    x = 17,202.72

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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.