Home / 20,053.53-30,109.87-11,186.19

Finding the Fourth Proportional to 20,053.53, 30,109.87 and 11,186.19

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Solution

The fourth proportional to 20,053.53, 30,109.87 and 11,186.19 is: 16,795.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,053.53 : 30,109.87 = 11,186.19 : x
  2. Step 2: Convert to fraction form
    20,053.53/30,109.87 = 11,186.19/x
  3. Step 3: Cross multiply
    20,053.53x = 30,109.87 × 11,186.19
  4. Step 4: Simplify right side
    20,053.53x = 336,814,520.22
  5. Step 5: Solve for x
    x = 336,814,520.22/20,053.53
  6. Step 6: Final answer
    x = 16,795.77

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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.