Home / 20,137.24-30,225.08-12,361.24

Finding the Fourth Proportional to 20,137.24, 30,225.08 and 12,361.24

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Solution

The fourth proportional to 20,137.24, 30,225.08 and 12,361.24 is: 18,553.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,137.24 : 30,225.08 = 12,361.24 : x
  2. Step 2: Convert to fraction form
    20,137.24/30,225.08 = 12,361.24/x
  3. Step 3: Cross multiply
    20,137.24x = 30,225.08 × 12,361.24
  4. Step 4: Simplify right side
    20,137.24x = 373,619,467.90
  5. Step 5: Solve for x
    x = 373,619,467.90/20,137.24
  6. Step 6: Final answer
    x = 18,553.66

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1.5x scale

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.