Home / 30,936.65-42,692.40-16,789.46

Finding the Fourth Proportional to 30,936.65, 42,692.40 and 16,789.46

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Solution

The fourth proportional to 30,936.65, 42,692.40 and 16,789.46 is: 23,169.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.65 : 42,692.40 = 16,789.46 : x
  2. Step 2: Convert to fraction form
    30,936.65/42,692.40 = 16,789.46/x
  3. Step 3: Cross multiply
    30,936.65x = 42,692.40 × 16,789.46
  4. Step 4: Simplify right side
    30,936.65x = 716,782,128.64
  5. Step 5: Solve for x
    x = 716,782,128.64/30,936.65
  6. Step 6: Final answer
    x = 23,169.36

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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.