Home / 21,019.93-29,007.73-11,588.83

Finding the Fourth Proportional to 21,019.93, 29,007.73 and 11,588.83

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Solution

The fourth proportional to 21,019.93, 29,007.73 and 11,588.83 is: 15,992.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019.93 : 29,007.73 = 11,588.83 : x
  2. Step 2: Convert to fraction form
    21,019.93/29,007.73 = 11,588.83/x
  3. Step 3: Cross multiply
    21,019.93x = 29,007.73 × 11,588.83
  4. Step 4: Simplify right side
    21,019.93x = 336,165,651.66
  5. Step 5: Solve for x
    x = 336,165,651.66/21,019.93
  6. Step 6: Final answer
    x = 15,992.71

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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.