Home / 34,479.76-47,583.72-20,149

Finding the Fourth Proportional to 34,479.76, 47,583.72 and 20,149

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Solution

The fourth proportional to 34,479.76, 47,583.72 and 20,149 is: 27,806.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,479.76 : 47,583.72 = 20,149 : x
  2. Step 2: Convert to fraction form
    34,479.76/47,583.72 = 20,149/x
  3. Step 3: Cross multiply
    34,479.76x = 47,583.72 × 20,149
  4. Step 4: Simplify right side
    34,479.76x = 958,764,374.28
  5. Step 5: Solve for x
    x = 958,764,374.28/34,479.76
  6. Step 6: Final answer
    x = 27,806.58

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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.