Home / 20,528.89-30,716.43-14,619.43

Finding the Fourth Proportional to 20,528.89, 30,716.43 and 14,619.43

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Solution

The fourth proportional to 20,528.89, 30,716.43 and 14,619.43 is: 21,874.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.89 : 30,716.43 = 14,619.43 : x
  2. Step 2: Convert to fraction form
    20,528.89/30,716.43 = 14,619.43/x
  3. Step 3: Cross multiply
    20,528.89x = 30,716.43 × 14,619.43
  4. Step 4: Simplify right side
    20,528.89x = 449,056,544.65
  5. Step 5: Solve for x
    x = 449,056,544.65/20,528.89
  6. Step 6: Final answer
    x = 21,874.38

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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.