Home / 28,579.44-39,438.74-15,832.11

Finding the Fourth Proportional to 28,579.44, 39,438.74 and 15,832.11

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Solution

The fourth proportional to 28,579.44, 39,438.74 and 15,832.11 is: 21,847.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.44 : 39,438.74 = 15,832.11 : x
  2. Step 2: Convert to fraction form
    28,579.44/39,438.74 = 15,832.11/x
  3. Step 3: Cross multiply
    28,579.44x = 39,438.74 × 15,832.11
  4. Step 4: Simplify right side
    28,579.44x = 624,398,390.78
  5. Step 5: Solve for x
    x = 624,398,390.78/28,579.44
  6. Step 6: Final answer
    x = 21,847.82

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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.