Home / 28,995.39-43,509.81-15,668.42

Finding the Fourth Proportional to 28,995.39, 43,509.81 and 15,668.42

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Solution

The fourth proportional to 28,995.39, 43,509.81 and 15,668.42 is: 23,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,995.39 : 43,509.81 = 15,668.42 : x
  2. Step 2: Convert to fraction form
    28,995.39/43,509.81 = 15,668.42/x
  3. Step 3: Cross multiply
    28,995.39x = 43,509.81 × 15,668.42
  4. Step 4: Simplify right side
    28,995.39x = 681,729,759.65
  5. Step 5: Solve for x
    x = 681,729,759.65/28,995.39
  6. Step 6: Final answer
    x = 23,511.66

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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.