Home / 20,673.09-28,528.20-11,241.59

Finding the Fourth Proportional to 20,673.09, 28,528.20 and 11,241.59

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Solution

The fourth proportional to 20,673.09, 28,528.20 and 11,241.59 is: 15,513.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.09 : 28,528.20 = 11,241.59 : x
  2. Step 2: Convert to fraction form
    20,673.09/28,528.20 = 11,241.59/x
  3. Step 3: Cross multiply
    20,673.09x = 28,528.20 × 11,241.59
  4. Step 4: Simplify right side
    20,673.09x = 320,702,185.20
  5. Step 5: Solve for x
    x = 320,702,185.20/20,673.09
  6. Step 6: Final answer
    x = 15,513.03

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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.