Home / 20,005.98-27,608.80-11,054.05

Finding the Fourth Proportional to 20,005.98, 27,608.80 and 11,054.05

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Solution

The fourth proportional to 20,005.98, 27,608.80 and 11,054.05 is: 15,254.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.98 : 27,608.80 = 11,054.05 : x
  2. Step 2: Convert to fraction form
    20,005.98/27,608.80 = 11,054.05/x
  3. Step 3: Cross multiply
    20,005.98x = 27,608.80 × 11,054.05
  4. Step 4: Simplify right side
    20,005.98x = 305,189,135.01
  5. Step 5: Solve for x
    x = 305,189,135.01/20,005.98
  6. Step 6: Final answer
    x = 15,254.90

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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.