Home / 20,189.00-27,860.38-11,235.96

Finding the Fourth Proportional to 20,189.00, 27,860.38 and 11,235.96

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Solution

The fourth proportional to 20,189.00, 27,860.38 and 11,235.96 is: 15,505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.00 : 27,860.38 = 11,235.96 : x
  2. Step 2: Convert to fraction form
    20,189.00/27,860.38 = 11,235.96/x
  3. Step 3: Cross multiply
    20,189.00x = 27,860.38 × 11,235.96
  4. Step 4: Simplify right side
    20,189.00x = 313,038,087.17
  5. Step 5: Solve for x
    x = 313,038,087.17/20,189.00
  6. Step 6: Final answer
    x = 15,505.38

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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.