Home / 20,998.98-28,982.79-12,052.53

Finding the Fourth Proportional to 20,998.98, 28,982.79 and 12,052.53

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Solution

The fourth proportional to 20,998.98, 28,982.79 and 12,052.53 is: 16,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998.98 : 28,982.79 = 12,052.53 : x
  2. Step 2: Convert to fraction form
    20,998.98/28,982.79 = 12,052.53/x
  3. Step 3: Cross multiply
    20,998.98x = 28,982.79 × 12,052.53
  4. Step 4: Simplify right side
    20,998.98x = 349,315,945.96
  5. Step 5: Solve for x
    x = 349,315,945.96/20,998.98
  6. Step 6: Final answer
    x = 16,634.90

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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.