Home / 20,081.37-27,712.25-11,006.72

Finding the Fourth Proportional to 20,081.37, 27,712.25 and 11,006.72

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Solution

The fourth proportional to 20,081.37, 27,712.25 and 11,006.72 is: 15,189.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.37 : 27,712.25 = 11,006.72 : x
  2. Step 2: Convert to fraction form
    20,081.37/27,712.25 = 11,006.72/x
  3. Step 3: Cross multiply
    20,081.37x = 27,712.25 × 11,006.72
  4. Step 4: Simplify right side
    20,081.37x = 305,021,075.79
  5. Step 5: Solve for x
    x = 305,021,075.79/20,081.37
  6. Step 6: Final answer
    x = 15,189.26

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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.