Home / 20,208.99-27,887.32-11,134.05

Finding the Fourth Proportional to 20,208.99, 27,887.32 and 11,134.05

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Solution

The fourth proportional to 20,208.99, 27,887.32 and 11,134.05 is: 15,364.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.99 : 27,887.32 = 11,134.05 : x
  2. Step 2: Convert to fraction form
    20,208.99/27,887.32 = 11,134.05/x
  3. Step 3: Cross multiply
    20,208.99x = 27,887.32 × 11,134.05
  4. Step 4: Simplify right side
    20,208.99x = 310,498,815.25
  5. Step 5: Solve for x
    x = 310,498,815.25/20,208.99
  6. Step 6: Final answer
    x = 15,364.39

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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.