Home / 21,965.25-32,883.26-13,618.47

Finding the Fourth Proportional to 21,965.25, 32,883.26 and 13,618.47

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Solution

The fourth proportional to 21,965.25, 32,883.26 and 13,618.47 is: 20,387.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.25 : 32,883.26 = 13,618.47 : x
  2. Step 2: Convert to fraction form
    21,965.25/32,883.26 = 13,618.47/x
  3. Step 3: Cross multiply
    21,965.25x = 32,883.26 × 13,618.47
  4. Step 4: Simplify right side
    21,965.25x = 447,819,621.72
  5. Step 5: Solve for x
    x = 447,819,621.72/21,965.25
  6. Step 6: Final answer
    x = 20,387.64

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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.