Home / 28,789.69-39,729.86-16,692.52

Finding the Fourth Proportional to 28,789.69, 39,729.86 and 16,692.52

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Solution

The fourth proportional to 28,789.69, 39,729.86 and 16,692.52 is: 23,035.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.69 : 39,729.86 = 16,692.52 : x
  2. Step 2: Convert to fraction form
    28,789.69/39,729.86 = 16,692.52/x
  3. Step 3: Cross multiply
    28,789.69x = 39,729.86 × 16,692.52
  4. Step 4: Simplify right side
    28,789.69x = 663,191,399.18
  5. Step 5: Solve for x
    x = 663,191,399.18/28,789.69
  6. Step 6: Final answer
    x = 23,035.73

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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.