Home / 20,722.92-28,589.07-14,438.94

Finding the Fourth Proportional to 20,722.92, 28,589.07 and 14,438.94

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Solution

The fourth proportional to 20,722.92, 28,589.07 and 14,438.94 is: 19,919.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.92 : 28,589.07 = 14,438.94 : x
  2. Step 2: Convert to fraction form
    20,722.92/28,589.07 = 14,438.94/x
  3. Step 3: Cross multiply
    20,722.92x = 28,589.07 × 14,438.94
  4. Step 4: Simplify right side
    20,722.92x = 412,795,866.39
  5. Step 5: Solve for x
    x = 412,795,866.39/20,722.92
  6. Step 6: Final answer
    x = 19,919.77

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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.