Home / 19,450.99-29,151.10-8,917.21

Finding the Fourth Proportional to 19,450.99, 29,151.10 and 8,917.21

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Solution

The fourth proportional to 19,450.99, 29,151.10 and 8,917.21 is: 13,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,450.99 : 29,151.10 = 8,917.21 : x
  2. Step 2: Convert to fraction form
    19,450.99/29,151.10 = 8,917.21/x
  3. Step 3: Cross multiply
    19,450.99x = 29,151.10 × 8,917.21
  4. Step 4: Simplify right side
    19,450.99x = 259,946,480.43
  5. Step 5: Solve for x
    x = 259,946,480.43/19,450.99
  6. Step 6: Final answer
    x = 13,364.18

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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.