Home / 30,936.63-42,692.57-16,789.47

Finding the Fourth Proportional to 30,936.63, 42,692.57 and 16,789.47

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Solution

The fourth proportional to 30,936.63, 42,692.57 and 16,789.47 is: 23,169.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.63 : 42,692.57 = 16,789.47 : x
  2. Step 2: Convert to fraction form
    30,936.63/42,692.57 = 16,789.47/x
  3. Step 3: Cross multiply
    30,936.63x = 42,692.57 × 16,789.47
  4. Step 4: Simplify right side
    30,936.63x = 716,785,665.21
  5. Step 5: Solve for x
    x = 716,785,665.21/30,936.63
  6. Step 6: Final answer
    x = 23,169.48

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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.