Home / 21,020.62-29,008.68-11,589.52

Finding the Fourth Proportional to 21,020.62, 29,008.68 and 11,589.52

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Solution

The fourth proportional to 21,020.62, 29,008.68 and 11,589.52 is: 15,993.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020.62 : 29,008.68 = 11,589.52 : x
  2. Step 2: Convert to fraction form
    21,020.62/29,008.68 = 11,589.52/x
  3. Step 3: Cross multiply
    21,020.62x = 29,008.68 × 11,589.52
  4. Step 4: Simplify right side
    21,020.62x = 336,196,677.03
  5. Step 5: Solve for x
    x = 336,196,677.03/21,020.62
  6. Step 6: Final answer
    x = 15,993.66

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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.