Home / 20,953.92-31,435.86-6,163.32

Finding the Fourth Proportional to 20,953.92, 31,435.86 and 6,163.32

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Solution

The fourth proportional to 20,953.92, 31,435.86 and 6,163.32 is: 9,246.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.92 : 31,435.86 = 6,163.32 : x
  2. Step 2: Convert to fraction form
    20,953.92/31,435.86 = 6,163.32/x
  3. Step 3: Cross multiply
    20,953.92x = 31,435.86 × 6,163.32
  4. Step 4: Simplify right side
    20,953.92x = 193,749,264.66
  5. Step 5: Solve for x
    x = 193,749,264.66/20,953.92
  6. Step 6: Final answer
    x = 9,246.44

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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.