Home / 20,505.05-30,704.32-17,562.43

Finding the Fourth Proportional to 20,505.05, 30,704.32 and 17,562.43

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Solution

The fourth proportional to 20,505.05, 30,704.32 and 17,562.43 is: 26,298.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505.05 : 30,704.32 = 17,562.43 : x
  2. Step 2: Convert to fraction form
    20,505.05/30,704.32 = 17,562.43/x
  3. Step 3: Cross multiply
    20,505.05x = 30,704.32 × 17,562.43
  4. Step 4: Simplify right side
    20,505.05x = 539,242,531.03
  5. Step 5: Solve for x
    x = 539,242,531.03/20,505.05
  6. Step 6: Final answer
    x = 26,298.04

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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.