Home / 27,936.45-38,551.86-15,189.89

Finding the Fourth Proportional to 27,936.45, 38,551.86 and 15,189.89

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Solution

The fourth proportional to 27,936.45, 38,551.86 and 15,189.89 is: 20,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,936.45 : 38,551.86 = 15,189.89 : x
  2. Step 2: Convert to fraction form
    27,936.45/38,551.86 = 15,189.89/x
  3. Step 3: Cross multiply
    27,936.45x = 38,551.86 × 15,189.89
  4. Step 4: Simplify right side
    27,936.45x = 585,598,319.94
  5. Step 5: Solve for x
    x = 585,598,319.94/27,936.45
  6. Step 6: Final answer
    x = 20,961.80

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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.