Home / 21,028.03-29,017.70-12,069.22

Finding the Fourth Proportional to 21,028.03, 29,017.70 and 12,069.22

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Solution

The fourth proportional to 21,028.03, 29,017.70 and 12,069.22 is: 16,654.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028.03 : 29,017.70 = 12,069.22 : x
  2. Step 2: Convert to fraction form
    21,028.03/29,017.70 = 12,069.22/x
  3. Step 3: Cross multiply
    21,028.03x = 29,017.70 × 12,069.22
  4. Step 4: Simplify right side
    21,028.03x = 350,220,944.85
  5. Step 5: Solve for x
    x = 350,220,944.85/21,028.03
  6. Step 6: Final answer
    x = 16,654.96

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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.