Home / 28,775.14-43,168.59-12,135.18

Finding the Fourth Proportional to 28,775.14, 43,168.59 and 12,135.18

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Solution

The fourth proportional to 28,775.14, 43,168.59 and 12,135.18 is: 18,205.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775.14 : 43,168.59 = 12,135.18 : x
  2. Step 2: Convert to fraction form
    28,775.14/43,168.59 = 12,135.18/x
  3. Step 3: Cross multiply
    28,775.14x = 43,168.59 × 12,135.18
  4. Step 4: Simplify right side
    28,775.14x = 523,858,771.88
  5. Step 5: Solve for x
    x = 523,858,771.88/28,775.14
  6. Step 6: Final answer
    x = 18,205.26

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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.