Home / 19,396.53-29,091.33-12,355.65

Finding the Fourth Proportional to 19,396.53, 29,091.33 and 12,355.65

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Solution

The fourth proportional to 19,396.53, 29,091.33 and 12,355.65 is: 18,531.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,396.53 : 29,091.33 = 12,355.65 : x
  2. Step 2: Convert to fraction form
    19,396.53/29,091.33 = 12,355.65/x
  3. Step 3: Cross multiply
    19,396.53x = 29,091.33 × 12,355.65
  4. Step 4: Simplify right side
    19,396.53x = 359,442,291.51
  5. Step 5: Solve for x
    x = 359,442,291.51/19,396.53
  6. Step 6: Final answer
    x = 18,531.27

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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.