Home / 20,558.86-30,838.37-4,976.46

Finding the Fourth Proportional to 20,558.86, 30,838.37 and 4,976.46

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Solution

The fourth proportional to 20,558.86, 30,838.37 and 4,976.46 is: 7,464.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.86 : 30,838.37 = 4,976.46 : x
  2. Step 2: Convert to fraction form
    20,558.86/30,838.37 = 4,976.46/x
  3. Step 3: Cross multiply
    20,558.86x = 30,838.37 × 4,976.46
  4. Step 4: Simplify right side
    20,558.86x = 153,465,914.77
  5. Step 5: Solve for x
    x = 153,465,914.77/20,558.86
  6. Step 6: Final answer
    x = 7,464.71

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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.