Home / 22,606.10-31,190.09-13,172.84

Finding the Fourth Proportional to 22,606.10, 31,190.09 and 13,172.84

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Solution

The fourth proportional to 22,606.10, 31,190.09 and 13,172.84 is: 18,174.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,606.10 : 31,190.09 = 13,172.84 : x
  2. Step 2: Convert to fraction form
    22,606.10/31,190.09 = 13,172.84/x
  3. Step 3: Cross multiply
    22,606.10x = 31,190.09 × 13,172.84
  4. Step 4: Simplify right side
    22,606.10x = 410,862,065.16
  5. Step 5: Solve for x
    x = 410,862,065.16/22,606.10
  6. Step 6: Final answer
    x = 18,174.83

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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.