Home / 19,405.85-29,099.57-8,872.75

Finding the Fourth Proportional to 19,405.85, 29,099.57 and 8,872.75

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Solution

The fourth proportional to 19,405.85, 29,099.57 and 8,872.75 is: 13,304.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.85 : 29,099.57 = 8,872.75 : x
  2. Step 2: Convert to fraction form
    19,405.85/29,099.57 = 8,872.75/x
  3. Step 3: Cross multiply
    19,405.85x = 29,099.57 × 8,872.75
  4. Step 4: Simplify right side
    19,405.85x = 258,193,092.60
  5. Step 5: Solve for x
    x = 258,193,092.60/19,405.85
  6. Step 6: Final answer
    x = 13,304.91

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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.