Home / 28,872.55-43,310.04-9,150.67

Finding the Fourth Proportional to 28,872.55, 43,310.04 and 9,150.67

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Solution

The fourth proportional to 28,872.55, 43,310.04 and 9,150.67 is: 13,726.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.55 : 43,310.04 = 9,150.67 : x
  2. Step 2: Convert to fraction form
    28,872.55/43,310.04 = 9,150.67/x
  3. Step 3: Cross multiply
    28,872.55x = 43,310.04 × 9,150.67
  4. Step 4: Simplify right side
    28,872.55x = 396,315,883.73
  5. Step 5: Solve for x
    x = 396,315,883.73/28,872.55
  6. Step 6: Final answer
    x = 13,726.39

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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.