Home / 28,956.75-43,435.13-8,180.79

Finding the Fourth Proportional to 28,956.75, 43,435.13 and 8,180.79

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Solution

The fourth proportional to 28,956.75, 43,435.13 and 8,180.79 is: 12,271.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956.75 : 43,435.13 = 8,180.79 : x
  2. Step 2: Convert to fraction form
    28,956.75/43,435.13 = 8,180.79/x
  3. Step 3: Cross multiply
    28,956.75x = 43,435.13 × 8,180.79
  4. Step 4: Simplify right side
    28,956.75x = 355,333,636.25
  5. Step 5: Solve for x
    x = 355,333,636.25/28,956.75
  6. Step 6: Final answer
    x = 12,271.19

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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.