Home / 20,610.36-28,441.92-11,657.56

Finding the Fourth Proportional to 20,610.36, 28,441.92 and 11,657.56

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Solution

The fourth proportional to 20,610.36, 28,441.92 and 11,657.56 is: 16,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.36 : 28,441.92 = 11,657.56 : x
  2. Step 2: Convert to fraction form
    20,610.36/28,441.92 = 11,657.56/x
  3. Step 3: Cross multiply
    20,610.36x = 28,441.92 × 11,657.56
  4. Step 4: Simplify right side
    20,610.36x = 331,563,388.92
  5. Step 5: Solve for x
    x = 331,563,388.92/20,610.36
  6. Step 6: Final answer
    x = 16,087.22

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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.