Home / 13,361.42-20,036.65-3,998.14

Finding the Fourth Proportional to 13,361.42, 20,036.65 and 3,998.14

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Solution

The fourth proportional to 13,361.42, 20,036.65 and 3,998.14 is: 5,995.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.42 : 20,036.65 = 3,998.14 : x
  2. Step 2: Convert to fraction form
    13,361.42/20,036.65 = 3,998.14/x
  3. Step 3: Cross multiply
    13,361.42x = 20,036.65 × 3,998.14
  4. Step 4: Simplify right side
    13,361.42x = 80,109,331.83
  5. Step 5: Solve for x
    x = 80,109,331.83/13,361.42
  6. Step 6: Final answer
    x = 5,995.57

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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.