Home / 21,922.98-30,246.57-13,416.23

Finding the Fourth Proportional to 21,922.98, 30,246.57 and 13,416.23

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Solution

The fourth proportional to 21,922.98, 30,246.57 and 13,416.23 is: 18,510.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.98 : 30,246.57 = 13,416.23 : x
  2. Step 2: Convert to fraction form
    21,922.98/30,246.57 = 13,416.23/x
  3. Step 3: Cross multiply
    21,922.98x = 30,246.57 × 13,416.23
  4. Step 4: Simplify right side
    21,922.98x = 405,794,939.83
  5. Step 5: Solve for x
    x = 405,794,939.83/21,922.98
  6. Step 6: Final answer
    x = 18,510.03

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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.