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Finding the Fourth Proportional to 19,625, 29,440.38 and 11,722.76

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Solution

The fourth proportional to 19,625, 29,440.38 and 11,722.76 is: 17,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,625 : 29,440.38 = 11,722.76 : x
  2. Step 2: Convert to fraction form
    19,625/29,440.38 = 11,722.76/x
  3. Step 3: Cross multiply
    19,625x = 29,440.38 × 11,722.76
  4. Step 4: Simplify right side
    19,625x = 345,122,509.05
  5. Step 5: Solve for x
    x = 345,122,509.05/19,625
  6. Step 6: Final answer
    x = 17,585.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.