Home / 30,080.77-41,512.70-16,651.78

Finding the Fourth Proportional to 30,080.77, 41,512.70 and 16,651.78

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Solution

The fourth proportional to 30,080.77, 41,512.70 and 16,651.78 is: 22,980.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,080.77 : 41,512.70 = 16,651.78 : x
  2. Step 2: Convert to fraction form
    30,080.77/41,512.70 = 16,651.78/x
  3. Step 3: Cross multiply
    30,080.77x = 41,512.70 × 16,651.78
  4. Step 4: Simplify right side
    30,080.77x = 691,260,285.45
  5. Step 5: Solve for x
    x = 691,260,285.45/30,080.77
  6. Step 6: Final answer
    x = 22,980.14

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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.