Home / 28,881.56-43,329.63-8,105.06

Finding the Fourth Proportional to 28,881.56, 43,329.63 and 8,105.06

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Solution

The fourth proportional to 28,881.56, 43,329.63 and 8,105.06 is: 12,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,881.56 : 43,329.63 = 8,105.06 : x
  2. Step 2: Convert to fraction form
    28,881.56/43,329.63 = 8,105.06/x
  3. Step 3: Cross multiply
    28,881.56x = 43,329.63 × 8,105.06
  4. Step 4: Simplify right side
    28,881.56x = 351,189,389.65
  5. Step 5: Solve for x
    x = 351,189,389.65/28,881.56
  6. Step 6: Final answer
    x = 12,159.64

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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.