Home / 22,905.70-31,610.78-12,834.23

Finding the Fourth Proportional to 22,905.70, 31,610.78 and 12,834.23

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Solution

The fourth proportional to 22,905.70, 31,610.78 and 12,834.23 is: 17,711.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,905.70 : 31,610.78 = 12,834.23 : x
  2. Step 2: Convert to fraction form
    22,905.70/31,610.78 = 12,834.23/x
  3. Step 3: Cross multiply
    22,905.70x = 31,610.78 × 12,834.23
  4. Step 4: Simplify right side
    22,905.70x = 405,700,021.00
  5. Step 5: Solve for x
    x = 405,700,021.00/22,905.70
  6. Step 6: Final answer
    x = 17,711.75

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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.