Home / 20,125.85-27,774.96-11,628.33

Finding the Fourth Proportional to 20,125.85, 27,774.96 and 11,628.33

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Solution

The fourth proportional to 20,125.85, 27,774.96 and 11,628.33 is: 16,047.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.85 : 27,774.96 = 11,628.33 : x
  2. Step 2: Convert to fraction form
    20,125.85/27,774.96 = 11,628.33/x
  3. Step 3: Cross multiply
    20,125.85x = 27,774.96 × 11,628.33
  4. Step 4: Simplify right side
    20,125.85x = 322,976,400.62
  5. Step 5: Solve for x
    x = 322,976,400.62/20,125.85
  6. Step 6: Final answer
    x = 16,047.84

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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.