Home / 20,558.37-28,369.13-12,173.25

Finding the Fourth Proportional to 20,558.37, 28,369.13 and 12,173.25

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Solution

The fourth proportional to 20,558.37, 28,369.13 and 12,173.25 is: 16,798.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.37 : 28,369.13 = 12,173.25 : x
  2. Step 2: Convert to fraction form
    20,558.37/28,369.13 = 12,173.25/x
  3. Step 3: Cross multiply
    20,558.37x = 28,369.13 × 12,173.25
  4. Step 4: Simplify right side
    20,558.37x = 345,344,450.91
  5. Step 5: Solve for x
    x = 345,344,450.91/20,558.37
  6. Step 6: Final answer
    x = 16,798.24

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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.