Home / 21,811.82-32,653.08-13,464.99

Finding the Fourth Proportional to 21,811.82, 32,653.08 and 13,464.99

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Solution

The fourth proportional to 21,811.82, 32,653.08 and 13,464.99 is: 20,157.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811.82 : 32,653.08 = 13,464.99 : x
  2. Step 2: Convert to fraction form
    21,811.82/32,653.08 = 13,464.99/x
  3. Step 3: Cross multiply
    21,811.82x = 32,653.08 × 13,464.99
  4. Step 4: Simplify right side
    21,811.82x = 439,673,395.67
  5. Step 5: Solve for x
    x = 439,673,395.67/21,811.82
  6. Step 6: Final answer
    x = 20,157.58

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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.