Home / 20,187.88-27,835.44-13,817.54

Finding the Fourth Proportional to 20,187.88, 27,835.44 and 13,817.54

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Solution

The fourth proportional to 20,187.88, 27,835.44 and 13,817.54 is: 19,051.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.88 : 27,835.44 = 13,817.54 : x
  2. Step 2: Convert to fraction form
    20,187.88/27,835.44 = 13,817.54/x
  3. Step 3: Cross multiply
    20,187.88x = 27,835.44 × 13,817.54
  4. Step 4: Simplify right side
    20,187.88x = 384,617,305.62
  5. Step 5: Solve for x
    x = 384,617,305.62/20,187.88
  6. Step 6: Final answer
    x = 19,051.89

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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.