Home / 40,910.66-61,366.75-12,830.09

Finding the Fourth Proportional to 40,910.66, 61,366.75 and 12,830.09

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Solution

The fourth proportional to 40,910.66, 61,366.75 and 12,830.09 is: 19,245.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,910.66 : 61,366.75 = 12,830.09 : x
  2. Step 2: Convert to fraction form
    40,910.66/61,366.75 = 12,830.09/x
  3. Step 3: Cross multiply
    40,910.66x = 61,366.75 × 12,830.09
  4. Step 4: Simplify right side
    40,910.66x = 787,341,046.85
  5. Step 5: Solve for x
    x = 787,341,046.85/40,910.66
  6. Step 6: Final answer
    x = 19,245.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.