Home / 21,020.63-29,008.60-11,589.26

Finding the Fourth Proportional to 21,020.63, 29,008.60 and 11,589.26

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Solution

The fourth proportional to 21,020.63, 29,008.60 and 11,589.26 is: 15,993.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020.63 : 29,008.60 = 11,589.26 : x
  2. Step 2: Convert to fraction form
    21,020.63/29,008.60 = 11,589.26/x
  3. Step 3: Cross multiply
    21,020.63x = 29,008.60 × 11,589.26
  4. Step 4: Simplify right side
    21,020.63x = 336,188,033.62
  5. Step 5: Solve for x
    x = 336,188,033.62/21,020.63
  6. Step 6: Final answer
    x = 15,993.25

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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.