Home / 21,406.26-29,540.62-11,975.02

Finding the Fourth Proportional to 21,406.26, 29,540.62 and 11,975.02

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Solution

The fourth proportional to 21,406.26, 29,540.62 and 11,975.02 is: 16,525.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406.26 : 29,540.62 = 11,975.02 : x
  2. Step 2: Convert to fraction form
    21,406.26/29,540.62 = 11,975.02/x
  3. Step 3: Cross multiply
    21,406.26x = 29,540.62 × 11,975.02
  4. Step 4: Simplify right side
    21,406.26x = 353,749,515.31
  5. Step 5: Solve for x
    x = 353,749,515.31/21,406.26
  6. Step 6: Final answer
    x = 16,525.52

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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.