Home / 19,790.40-29,687.14-5,750.65

Finding the Fourth Proportional to 19,790.40, 29,687.14 and 5,750.65

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Solution

The fourth proportional to 19,790.40, 29,687.14 and 5,750.65 is: 8,626.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.40 : 29,687.14 = 5,750.65 : x
  2. Step 2: Convert to fraction form
    19,790.40/29,687.14 = 5,750.65/x
  3. Step 3: Cross multiply
    19,790.40x = 29,687.14 × 5,750.65
  4. Step 4: Simplify right side
    19,790.40x = 170,720,351.64
  5. Step 5: Solve for x
    x = 170,720,351.64/19,790.40
  6. Step 6: Final answer
    x = 8,626.42

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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.