Home / 20,362.06-28,099.63-11,409.64

Finding the Fourth Proportional to 20,362.06, 28,099.63 and 11,409.64

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Solution

The fourth proportional to 20,362.06, 28,099.63 and 11,409.64 is: 15,745.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362.06 : 28,099.63 = 11,409.64 : x
  2. Step 2: Convert to fraction form
    20,362.06/28,099.63 = 11,409.64/x
  3. Step 3: Cross multiply
    20,362.06x = 28,099.63 × 11,409.64
  4. Step 4: Simplify right side
    20,362.06x = 320,606,606.45
  5. Step 5: Solve for x
    x = 320,606,606.45/20,362.06
  6. Step 6: Final answer
    x = 15,745.29

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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.