Home / 22,190.63-30,623.22-12,759.26

Finding the Fourth Proportional to 22,190.63, 30,623.22 and 12,759.26

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Solution

The fourth proportional to 22,190.63, 30,623.22 and 12,759.26 is: 17,607.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,190.63 : 30,623.22 = 12,759.26 : x
  2. Step 2: Convert to fraction form
    22,190.63/30,623.22 = 12,759.26/x
  3. Step 3: Cross multiply
    22,190.63x = 30,623.22 × 12,759.26
  4. Step 4: Simplify right side
    22,190.63x = 390,729,472.90
  5. Step 5: Solve for x
    x = 390,729,472.90/22,190.63
  6. Step 6: Final answer
    x = 17,607.86

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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.