Home / 28,571.22-39,427.74-15,824.08

Finding the Fourth Proportional to 28,571.22, 39,427.74 and 15,824.08

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Solution

The fourth proportional to 28,571.22, 39,427.74 and 15,824.08 is: 21,836.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.22 : 39,427.74 = 15,824.08 : x
  2. Step 2: Convert to fraction form
    28,571.22/39,427.74 = 15,824.08/x
  3. Step 3: Cross multiply
    28,571.22x = 39,427.74 × 15,824.08
  4. Step 4: Simplify right side
    28,571.22x = 623,907,827.65
  5. Step 5: Solve for x
    x = 623,907,827.65/28,571.22
  6. Step 6: Final answer
    x = 21,836.93

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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.