Home / 20,777.33-28,647.70-14,409.44

Finding the Fourth Proportional to 20,777.33, 28,647.70 and 14,409.44

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Solution

The fourth proportional to 20,777.33, 28,647.70 and 14,409.44 is: 19,867.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777.33 : 28,647.70 = 14,409.44 : x
  2. Step 2: Convert to fraction form
    20,777.33/28,647.70 = 14,409.44/x
  3. Step 3: Cross multiply
    20,777.33x = 28,647.70 × 14,409.44
  4. Step 4: Simplify right side
    20,777.33x = 412,797,099.00
  5. Step 5: Solve for x
    x = 412,797,099.00/20,777.33
  6. Step 6: Final answer
    x = 19,867.67

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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.