Home / 21,692.10-29,936.65-13,192.64

Finding the Fourth Proportional to 21,692.10, 29,936.65 and 13,192.64

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Solution

The fourth proportional to 21,692.10, 29,936.65 and 13,192.64 is: 18,206.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,692.10 : 29,936.65 = 13,192.64 : x
  2. Step 2: Convert to fraction form
    21,692.10/29,936.65 = 13,192.64/x
  3. Step 3: Cross multiply
    21,692.10x = 29,936.65 × 13,192.64
  4. Step 4: Simplify right side
    21,692.10x = 394,943,446.26
  5. Step 5: Solve for x
    x = 394,943,446.26/21,692.10
  6. Step 6: Final answer
    x = 18,206.79

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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.