Home / 34,976.45-48,267.81-20,636.61

Finding the Fourth Proportional to 34,976.45, 48,267.81 and 20,636.61

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Solution

The fourth proportional to 34,976.45, 48,267.81 and 20,636.61 is: 28,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,976.45 : 48,267.81 = 20,636.61 : x
  2. Step 2: Convert to fraction form
    34,976.45/48,267.81 = 20,636.61/x
  3. Step 3: Cross multiply
    34,976.45x = 48,267.81 × 20,636.61
  4. Step 4: Simplify right side
    34,976.45x = 996,083,970.52
  5. Step 5: Solve for x
    x = 996,083,970.52/34,976.45
  6. Step 6: Final answer
    x = 28,478.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.