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Finding the Fourth Proportional to 19,136.99, 26,399.84 and 16,479.79

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Solution

The fourth proportional to 19,136.99, 26,399.84 and 16,479.79 is: 22,734.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.99 : 26,399.84 = 16,479.79 : x
  2. Step 2: Convert to fraction form
    19,136.99/26,399.84 = 16,479.79/x
  3. Step 3: Cross multiply
    19,136.99x = 26,399.84 × 16,479.79
  4. Step 4: Simplify right side
    19,136.99x = 435,063,670.84
  5. Step 5: Solve for x
    x = 435,063,670.84/19,136.99
  6. Step 6: Final answer
    x = 22,734.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.