Home / 30,078.41-41,508.79-16,649.28

Finding the Fourth Proportional to 30,078.41, 41,508.79 and 16,649.28

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Solution

The fourth proportional to 30,078.41, 41,508.79 and 16,649.28 is: 22,976.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,078.41 : 41,508.79 = 16,649.28 : x
  2. Step 2: Convert to fraction form
    30,078.41/41,508.79 = 16,649.28/x
  3. Step 3: Cross multiply
    30,078.41x = 41,508.79 × 16,649.28
  4. Step 4: Simplify right side
    30,078.41x = 691,091,425.55
  5. Step 5: Solve for x
    x = 691,091,425.55/30,078.41
  6. Step 6: Final answer
    x = 22,976.33

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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.