Home / 19,007.42-28,440.50-11,954.49

Finding the Fourth Proportional to 19,007.42, 28,440.50 and 11,954.49

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Solution

The fourth proportional to 19,007.42, 28,440.50 and 11,954.49 is: 17,887.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.42 : 28,440.50 = 11,954.49 : x
  2. Step 2: Convert to fraction form
    19,007.42/28,440.50 = 11,954.49/x
  3. Step 3: Cross multiply
    19,007.42x = 28,440.50 × 11,954.49
  4. Step 4: Simplify right side
    19,007.42x = 339,991,764.55
  5. Step 5: Solve for x
    x = 339,991,764.55/19,007.42
  6. Step 6: Final answer
    x = 17,887.32

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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.