Home / 20,495.44-28,099.35-20,121.83

Finding the Fourth Proportional to 20,495.44, 28,099.35 and 20,121.83

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Solution

The fourth proportional to 20,495.44, 28,099.35 and 20,121.83 is: 27,587.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495.44 : 28,099.35 = 20,121.83 : x
  2. Step 2: Convert to fraction form
    20,495.44/28,099.35 = 20,121.83/x
  3. Step 3: Cross multiply
    20,495.44x = 28,099.35 × 20,121.83
  4. Step 4: Simplify right side
    20,495.44x = 565,410,343.81
  5. Step 5: Solve for x
    x = 565,410,343.81/20,495.44
  6. Step 6: Final answer
    x = 27,587.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.