Home / 21,517.04-29,692.44-13,021.04

Finding the Fourth Proportional to 21,517.04, 29,692.44 and 13,021.04

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Solution

The fourth proportional to 21,517.04, 29,692.44 and 13,021.04 is: 17,968.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,517.04 : 29,692.44 = 13,021.04 : x
  2. Step 2: Convert to fraction form
    21,517.04/29,692.44 = 13,021.04/x
  3. Step 3: Cross multiply
    21,517.04x = 29,692.44 × 13,021.04
  4. Step 4: Simplify right side
    21,517.04x = 386,626,448.94
  5. Step 5: Solve for x
    x = 386,626,448.94/21,517.04
  6. Step 6: Final answer
    x = 17,968.38

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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.