Home / 20,218.82-30,283.09-15,504.10

Finding the Fourth Proportional to 20,218.82, 30,283.09 and 15,504.10

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Solution

The fourth proportional to 20,218.82, 30,283.09 and 15,504.10 is: 23,221.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.82 : 30,283.09 = 15,504.10 : x
  2. Step 2: Convert to fraction form
    20,218.82/30,283.09 = 15,504.10/x
  3. Step 3: Cross multiply
    20,218.82x = 30,283.09 × 15,504.10
  4. Step 4: Simplify right side
    20,218.82x = 469,511,941.20
  5. Step 5: Solve for x
    x = 469,511,941.20/20,218.82
  6. Step 6: Final answer
    x = 23,221.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.