Home / 19,399.96-29,107.26-7,721.44

Finding the Fourth Proportional to 19,399.96, 29,107.26 and 7,721.44

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Solution

The fourth proportional to 19,399.96, 29,107.26 and 7,721.44 is: 11,585.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.96 : 29,107.26 = 7,721.44 : x
  2. Step 2: Convert to fraction form
    19,399.96/29,107.26 = 7,721.44/x
  3. Step 3: Cross multiply
    19,399.96x = 29,107.26 × 7,721.44
  4. Step 4: Simplify right side
    19,399.96x = 224,749,961.65
  5. Step 5: Solve for x
    x = 224,749,961.65/19,399.96
  6. Step 6: Final answer
    x = 11,585.07

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1.5x scale

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.