Home / 19,239.66-28,884.42-18,450

Finding the Fourth Proportional to 19,239.66, 28,884.42 and 18,450

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Solution

The fourth proportional to 19,239.66, 28,884.42 and 18,450 is: 27,698.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,239.66 : 28,884.42 = 18,450 : x
  2. Step 2: Convert to fraction form
    19,239.66/28,884.42 = 18,450/x
  3. Step 3: Cross multiply
    19,239.66x = 28,884.42 × 18,450
  4. Step 4: Simplify right side
    19,239.66x = 532,917,549.00
  5. Step 5: Solve for x
    x = 532,917,549.00/19,239.66
  6. Step 6: Final answer
    x = 27,698.91

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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.