Home / 20,558.93-30,847.80-11,184.90

Finding the Fourth Proportional to 20,558.93, 30,847.80 and 11,184.90

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Solution

The fourth proportional to 20,558.93, 30,847.80 and 11,184.90 is: 16,782.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.93 : 30,847.80 = 11,184.90 : x
  2. Step 2: Convert to fraction form
    20,558.93/30,847.80 = 11,184.90/x
  3. Step 3: Cross multiply
    20,558.93x = 30,847.80 × 11,184.90
  4. Step 4: Simplify right side
    20,558.93x = 345,029,558.22
  5. Step 5: Solve for x
    x = 345,029,558.22/20,558.93
  6. Step 6: Final answer
    x = 16,782.47

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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.