Home / 28,817.57-43,230.82-12,177.67

Finding the Fourth Proportional to 28,817.57, 43,230.82 and 12,177.67

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Solution

The fourth proportional to 28,817.57, 43,230.82 and 12,177.67 is: 18,268.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,817.57 : 43,230.82 = 12,177.67 : x
  2. Step 2: Convert to fraction form
    28,817.57/43,230.82 = 12,177.67/x
  3. Step 3: Cross multiply
    28,817.57x = 43,230.82 × 12,177.67
  4. Step 4: Simplify right side
    28,817.57x = 526,450,659.79
  5. Step 5: Solve for x
    x = 526,450,659.79/28,817.57
  6. Step 6: Final answer
    x = 18,268.39

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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.