Home / 20,914.82-31,364.06-7,584.65

Finding the Fourth Proportional to 20,914.82, 31,364.06 and 7,584.65

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Solution

The fourth proportional to 20,914.82, 31,364.06 and 7,584.65 is: 11,374.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914.82 : 31,364.06 = 7,584.65 : x
  2. Step 2: Convert to fraction form
    20,914.82/31,364.06 = 7,584.65/x
  3. Step 3: Cross multiply
    20,914.82x = 31,364.06 × 7,584.65
  4. Step 4: Simplify right side
    20,914.82x = 237,885,515.05
  5. Step 5: Solve for x
    x = 237,885,515.05/20,914.82
  6. Step 6: Final answer
    x = 11,374.02

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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.