Home / 20,361.24-30,541.86-11,591.64

Finding the Fourth Proportional to 20,361.24, 30,541.86 and 11,591.64

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Solution

The fourth proportional to 20,361.24, 30,541.86 and 11,591.64 is: 17,387.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361.24 : 30,541.86 = 11,591.64 : x
  2. Step 2: Convert to fraction form
    20,361.24/30,541.86 = 11,591.64/x
  3. Step 3: Cross multiply
    20,361.24x = 30,541.86 × 11,591.64
  4. Step 4: Simplify right side
    20,361.24x = 354,030,246.05
  5. Step 5: Solve for x
    x = 354,030,246.05/20,361.24
  6. Step 6: Final answer
    x = 17,387.46

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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.