Home / 20,238.66-30,361.23-8,551.98

Finding the Fourth Proportional to 20,238.66, 30,361.23 and 8,551.98

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Solution

The fourth proportional to 20,238.66, 30,361.23 and 8,551.98 is: 12,829.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.66 : 30,361.23 = 8,551.98 : x
  2. Step 2: Convert to fraction form
    20,238.66/30,361.23 = 8,551.98/x
  3. Step 3: Cross multiply
    20,238.66x = 30,361.23 × 8,551.98
  4. Step 4: Simplify right side
    20,238.66x = 259,648,631.74
  5. Step 5: Solve for x
    x = 259,648,631.74/20,238.66
  6. Step 6: Final answer
    x = 12,829.34

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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.