Home / 28,829.57-43,250.19-12,189.57

Finding the Fourth Proportional to 28,829.57, 43,250.19 and 12,189.57

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Solution

The fourth proportional to 28,829.57, 43,250.19 and 12,189.57 is: 18,286.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.57 : 43,250.19 = 12,189.57 : x
  2. Step 2: Convert to fraction form
    28,829.57/43,250.19 = 12,189.57/x
  3. Step 3: Cross multiply
    28,829.57x = 43,250.19 × 12,189.57
  4. Step 4: Simplify right side
    28,829.57x = 527,201,396.56
  5. Step 5: Solve for x
    x = 527,201,396.56/28,829.57
  6. Step 6: Final answer
    x = 18,286.83

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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.