Home / 20,629.63-28,467.64-12,133.26

Finding the Fourth Proportional to 20,629.63, 28,467.64 and 12,133.26

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Solution

The fourth proportional to 20,629.63, 28,467.64 and 12,133.26 is: 16,743.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.63 : 28,467.64 = 12,133.26 : x
  2. Step 2: Convert to fraction form
    20,629.63/28,467.64 = 12,133.26/x
  3. Step 3: Cross multiply
    20,629.63x = 28,467.64 × 12,133.26
  4. Step 4: Simplify right side
    20,629.63x = 345,405,277.71
  5. Step 5: Solve for x
    x = 345,405,277.71/20,629.63
  6. Step 6: Final answer
    x = 16,743.16

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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.