Home / 23,991.21-35,986.82-19,878.57

Finding the Fourth Proportional to 23,991.21, 35,986.82 and 19,878.57

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Solution

The fourth proportional to 23,991.21, 35,986.82 and 19,878.57 is: 29,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,991.21 : 35,986.82 = 19,878.57 : x
  2. Step 2: Convert to fraction form
    23,991.21/35,986.82 = 19,878.57/x
  3. Step 3: Cross multiply
    23,991.21x = 35,986.82 × 19,878.57
  4. Step 4: Simplify right side
    23,991.21x = 715,366,421.05
  5. Step 5: Solve for x
    x = 715,366,421.05/23,991.21
  6. Step 6: Final answer
    x = 29,817.86

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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.