Home / 21,049.83-29,054.79-12,443.99

Finding the Fourth Proportional to 21,049.83, 29,054.79 and 12,443.99

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Solution

The fourth proportional to 21,049.83, 29,054.79 and 12,443.99 is: 17,176.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.83 : 29,054.79 = 12,443.99 : x
  2. Step 2: Convert to fraction form
    21,049.83/29,054.79 = 12,443.99/x
  3. Step 3: Cross multiply
    21,049.83x = 29,054.79 × 12,443.99
  4. Step 4: Simplify right side
    21,049.83x = 361,557,370.94
  5. Step 5: Solve for x
    x = 361,557,370.94/21,049.83
  6. Step 6: Final answer
    x = 17,176.26

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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.