Home / 21,449.44-29,613.36-16,991.20

Finding the Fourth Proportional to 21,449.44, 29,613.36 and 16,991.20

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Solution

The fourth proportional to 21,449.44, 29,613.36 and 16,991.20 is: 23,458.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.44 : 29,613.36 = 16,991.20 : x
  2. Step 2: Convert to fraction form
    21,449.44/29,613.36 = 16,991.20/x
  3. Step 3: Cross multiply
    21,449.44x = 29,613.36 × 16,991.20
  4. Step 4: Simplify right side
    21,449.44x = 503,166,522.43
  5. Step 5: Solve for x
    x = 503,166,522.43/21,449.44
  6. Step 6: Final answer
    x = 23,458.26

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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.