Home / 16,219.08-22,361.86-13,231.88

Finding the Fourth Proportional to 16,219.08, 22,361.86 and 13,231.88

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Solution

The fourth proportional to 16,219.08, 22,361.86 and 13,231.88 is: 18,243.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,219.08 : 22,361.86 = 13,231.88 : x
  2. Step 2: Convert to fraction form
    16,219.08/22,361.86 = 13,231.88/x
  3. Step 3: Cross multiply
    16,219.08x = 22,361.86 × 13,231.88
  4. Step 4: Simplify right side
    16,219.08x = 295,889,448.10
  5. Step 5: Solve for x
    x = 295,889,448.10/16,219.08
  6. Step 6: Final answer
    x = 18,243.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.