Home / 28,680.93-43,021.38-8,961.18

Finding the Fourth Proportional to 28,680.93, 43,021.38 and 8,961.18

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Solution

The fourth proportional to 28,680.93, 43,021.38 and 8,961.18 is: 13,441.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.93 : 43,021.38 = 8,961.18 : x
  2. Step 2: Convert to fraction form
    28,680.93/43,021.38 = 8,961.18/x
  3. Step 3: Cross multiply
    28,680.93x = 43,021.38 × 8,961.18
  4. Step 4: Simplify right side
    28,680.93x = 385,522,330.03
  5. Step 5: Solve for x
    x = 385,522,330.03/28,680.93
  6. Step 6: Final answer
    x = 13,441.77

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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.