Home / 27,815.54-38,379.37-16,479.36

Finding the Fourth Proportional to 27,815.54, 38,379.37 and 16,479.36

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Solution

The fourth proportional to 27,815.54, 38,379.37 and 16,479.36 is: 22,737.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,815.54 : 38,379.37 = 16,479.36 : x
  2. Step 2: Convert to fraction form
    27,815.54/38,379.37 = 16,479.36/x
  3. Step 3: Cross multiply
    27,815.54x = 38,379.37 × 16,479.36
  4. Step 4: Simplify right side
    27,815.54x = 632,467,336.56
  5. Step 5: Solve for x
    x = 632,467,336.56/27,815.54
  6. Step 6: Final answer
    x = 22,737.92

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1.5x scale

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.