Home / 30,936.26-42,692.20-16,789.08

Finding the Fourth Proportional to 30,936.26, 42,692.20 and 16,789.08

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Solution

The fourth proportional to 30,936.26, 42,692.20 and 16,789.08 is: 23,169.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.26 : 42,692.20 = 16,789.08 : x
  2. Step 2: Convert to fraction form
    30,936.26/42,692.20 = 16,789.08/x
  3. Step 3: Cross multiply
    30,936.26x = 42,692.20 × 16,789.08
  4. Step 4: Simplify right side
    30,936.26x = 716,762,761.18
  5. Step 5: Solve for x
    x = 716,762,761.18/30,936.26
  6. Step 6: Final answer
    x = 23,169.02

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1.5x scale

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.