Home / 30,936.61-42,692.66-16,789.45

Finding the Fourth Proportional to 30,936.61, 42,692.66 and 16,789.45

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Solution

The fourth proportional to 30,936.61, 42,692.66 and 16,789.45 is: 23,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.61 : 42,692.66 = 16,789.45 : x
  2. Step 2: Convert to fraction form
    30,936.61/42,692.66 = 16,789.45/x
  3. Step 3: Cross multiply
    30,936.61x = 42,692.66 × 16,789.45
  4. Step 4: Simplify right side
    30,936.61x = 716,786,280.44
  5. Step 5: Solve for x
    x = 716,786,280.44/30,936.61
  6. Step 6: Final answer
    x = 23,169.52

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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.