Home / 20,361.24-30,540.24-7,887.24

Finding the Fourth Proportional to 20,361.24, 30,540.24 and 7,887.24

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Solution

The fourth proportional to 20,361.24, 30,540.24 and 7,887.24 is: 11,830.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361.24 : 30,540.24 = 7,887.24 : x
  2. Step 2: Convert to fraction form
    20,361.24/30,540.24 = 7,887.24/x
  3. Step 3: Cross multiply
    20,361.24x = 30,540.24 × 7,887.24
  4. Step 4: Simplify right side
    20,361.24x = 240,878,202.54
  5. Step 5: Solve for x
    x = 240,878,202.54/20,361.24
  6. Step 6: Final answer
    x = 11,830.23

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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.