Home / 22,640.30-31,247.34-12,571.96

Finding the Fourth Proportional to 22,640.30, 31,247.34 and 12,571.96

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Solution

The fourth proportional to 22,640.30, 31,247.34 and 12,571.96 is: 17,351.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,640.30 : 31,247.34 = 12,571.96 : x
  2. Step 2: Convert to fraction form
    22,640.30/31,247.34 = 12,571.96/x
  3. Step 3: Cross multiply
    22,640.30x = 31,247.34 × 12,571.96
  4. Step 4: Simplify right side
    22,640.30x = 392,840,308.59
  5. Step 5: Solve for x
    x = 392,840,308.59/22,640.30
  6. Step 6: Final answer
    x = 17,351.37

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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.