Home / 28,790.56-39,729.44-16,214.50

Finding the Fourth Proportional to 28,790.56, 39,729.44 and 16,214.50

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Solution

The fourth proportional to 28,790.56, 39,729.44 and 16,214.50 is: 22,375.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.56 : 39,729.44 = 16,214.50 : x
  2. Step 2: Convert to fraction form
    28,790.56/39,729.44 = 16,214.50/x
  3. Step 3: Cross multiply
    28,790.56x = 39,729.44 × 16,214.50
  4. Step 4: Simplify right side
    28,790.56x = 644,193,004.88
  5. Step 5: Solve for x
    x = 644,193,004.88/28,790.56
  6. Step 6: Final answer
    x = 22,375.15

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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.