Home / 20,629.22-28,468.74-13,463.73

Finding the Fourth Proportional to 20,629.22, 28,468.74 and 13,463.73

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Solution

The fourth proportional to 20,629.22, 28,468.74 and 13,463.73 is: 18,580.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.22 : 28,468.74 = 13,463.73 : x
  2. Step 2: Convert to fraction form
    20,629.22/28,468.74 = 13,463.73/x
  3. Step 3: Cross multiply
    20,629.22x = 28,468.74 × 13,463.73
  4. Step 4: Simplify right side
    20,629.22x = 383,295,428.80
  5. Step 5: Solve for x
    x = 383,295,428.80/20,629.22
  6. Step 6: Final answer
    x = 18,580.22

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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.