Home / 30,936.18-42,692.05-16,789.03

Finding the Fourth Proportional to 30,936.18, 42,692.05 and 16,789.03

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Solution

The fourth proportional to 30,936.18, 42,692.05 and 16,789.03 is: 23,168.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.18 : 42,692.05 = 16,789.03 : x
  2. Step 2: Convert to fraction form
    30,936.18/42,692.05 = 16,789.03/x
  3. Step 3: Cross multiply
    30,936.18x = 42,692.05 × 16,789.03
  4. Step 4: Simplify right side
    30,936.18x = 716,758,108.21
  5. Step 5: Solve for x
    x = 716,758,108.21/30,936.18
  6. Step 6: Final answer
    x = 23,168.93

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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.