Home / 28,922.24-43,384.88-8,147.36

Finding the Fourth Proportional to 28,922.24, 43,384.88 and 8,147.36

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Solution

The fourth proportional to 28,922.24, 43,384.88 and 8,147.36 is: 12,221.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,922.24 : 43,384.88 = 8,147.36 : x
  2. Step 2: Convert to fraction form
    28,922.24/43,384.88 = 8,147.36/x
  3. Step 3: Cross multiply
    28,922.24x = 43,384.88 × 8,147.36
  4. Step 4: Simplify right side
    28,922.24x = 353,472,235.92
  5. Step 5: Solve for x
    x = 353,472,235.92/28,922.24
  6. Step 6: Final answer
    x = 12,221.47

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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.