Home / 21,049.88-29,049.44-11,619.05

Finding the Fourth Proportional to 21,049.88, 29,049.44 and 11,619.05

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Solution

The fourth proportional to 21,049.88, 29,049.44 and 11,619.05 is: 16,034.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.88 : 29,049.44 = 11,619.05 : x
  2. Step 2: Convert to fraction form
    21,049.88/29,049.44 = 11,619.05/x
  3. Step 3: Cross multiply
    21,049.88x = 29,049.44 × 11,619.05
  4. Step 4: Simplify right side
    21,049.88x = 337,526,692.49
  5. Step 5: Solve for x
    x = 337,526,692.49/21,049.88
  6. Step 6: Final answer
    x = 16,034.62

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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.