Home / 20,673.44-28,528.80-11,241.84

Finding the Fourth Proportional to 20,673.44, 28,528.80 and 11,241.84

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Solution

The fourth proportional to 20,673.44, 28,528.80 and 11,241.84 is: 15,513.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.44 : 28,528.80 = 11,241.84 : x
  2. Step 2: Convert to fraction form
    20,673.44/28,528.80 = 11,241.84/x
  3. Step 3: Cross multiply
    20,673.44x = 28,528.80 × 11,241.84
  4. Step 4: Simplify right side
    20,673.44x = 320,716,204.99
  5. Step 5: Solve for x
    x = 320,716,204.99/20,673.44
  6. Step 6: Final answer
    x = 15,513.44

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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.