Home / 19,121.43-28,628.97-14,427.27

Finding the Fourth Proportional to 19,121.43, 28,628.97 and 14,427.27

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Solution

The fourth proportional to 19,121.43, 28,628.97 and 14,427.27 is: 21,600.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.43 : 28,628.97 = 14,427.27 : x
  2. Step 2: Convert to fraction form
    19,121.43/28,628.97 = 14,427.27/x
  3. Step 3: Cross multiply
    19,121.43x = 28,628.97 × 14,427.27
  4. Step 4: Simplify right side
    19,121.43x = 413,037,880.01
  5. Step 5: Solve for x
    x = 413,037,880.01/19,121.43
  6. Step 6: Final answer
    x = 21,600.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.