Home / 20,361.40-30,533.90-8,507.41

Finding the Fourth Proportional to 20,361.40, 30,533.90 and 8,507.41

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Solution

The fourth proportional to 20,361.40, 30,533.90 and 8,507.41 is: 12,757.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361.40 : 30,533.90 = 8,507.41 : x
  2. Step 2: Convert to fraction form
    20,361.40/30,533.90 = 8,507.41/x
  3. Step 3: Cross multiply
    20,361.40x = 30,533.90 × 8,507.41
  4. Step 4: Simplify right side
    20,361.40x = 259,764,406.20
  5. Step 5: Solve for x
    x = 259,764,406.20/20,361.40
  6. Step 6: Final answer
    x = 12,757.69

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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.