Home / 20,558.36-30,837.62-4,975.96

Finding the Fourth Proportional to 20,558.36, 30,837.62 and 4,975.96

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Solution

The fourth proportional to 20,558.36, 30,837.62 and 4,975.96 is: 7,463.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.36 : 30,837.62 = 4,975.96 : x
  2. Step 2: Convert to fraction form
    20,558.36/30,837.62 = 4,975.96/x
  3. Step 3: Cross multiply
    20,558.36x = 30,837.62 × 4,975.96
  4. Step 4: Simplify right side
    20,558.36x = 153,446,763.62
  5. Step 5: Solve for x
    x = 153,446,763.62/20,558.36
  6. Step 6: Final answer
    x = 7,463.96

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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.