Home / 16,895.68-25,361.34-13,811.20

Finding the Fourth Proportional to 16,895.68, 25,361.34 and 13,811.20

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Solution

The fourth proportional to 16,895.68, 25,361.34 and 13,811.20 is: 20,731.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,895.68 : 25,361.34 = 13,811.20 : x
  2. Step 2: Convert to fraction form
    16,895.68/25,361.34 = 13,811.20/x
  3. Step 3: Cross multiply
    16,895.68x = 25,361.34 × 13,811.20
  4. Step 4: Simplify right side
    16,895.68x = 350,270,539.01
  5. Step 5: Solve for x
    x = 350,270,539.01/16,895.68
  6. Step 6: Final answer
    x = 20,731.37

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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.