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Finding the Fourth Proportional to 19,950.22, 29,922.89 and 5,157.89

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Solution

The fourth proportional to 19,950.22, 29,922.89 and 5,157.89 is: 7,736.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,950.22 : 29,922.89 = 5,157.89 : x
  2. Step 2: Convert to fraction form
    19,950.22/29,922.89 = 5,157.89/x
  3. Step 3: Cross multiply
    19,950.22x = 29,922.89 × 5,157.89
  4. Step 4: Simplify right side
    19,950.22x = 154,339,080.23
  5. Step 5: Solve for x
    x = 154,339,080.23/19,950.22
  6. Step 6: Final answer
    x = 7,736.21

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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.