Home / 28,619.37-39,494.03-15,872.36

Finding the Fourth Proportional to 28,619.37, 39,494.03 and 15,872.36

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Solution

The fourth proportional to 28,619.37, 39,494.03 and 15,872.36 is: 21,903.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,619.37 : 39,494.03 = 15,872.36 : x
  2. Step 2: Convert to fraction form
    28,619.37/39,494.03 = 15,872.36/x
  3. Step 3: Cross multiply
    28,619.37x = 39,494.03 × 15,872.36
  4. Step 4: Simplify right side
    28,619.37x = 626,863,185.18
  5. Step 5: Solve for x
    x = 626,863,185.18/28,619.37
  6. Step 6: Final answer
    x = 21,903.46

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Why These Related Problems?

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