Home / 20,673.33-28,529.05-11,241.90

Finding the Fourth Proportional to 20,673.33, 28,529.05 and 11,241.90

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Solution

The fourth proportional to 20,673.33, 28,529.05 and 11,241.90 is: 15,513.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.33 : 28,529.05 = 11,241.90 : x
  2. Step 2: Convert to fraction form
    20,673.33/28,529.05 = 11,241.90/x
  3. Step 3: Cross multiply
    20,673.33x = 28,529.05 × 11,241.90
  4. Step 4: Simplify right side
    20,673.33x = 320,720,727.20
  5. Step 5: Solve for x
    x = 320,720,727.20/20,673.33
  6. Step 6: Final answer
    x = 15,513.74

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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.