Home / 30,310.76-41,815.38-17,729.96

Finding the Fourth Proportional to 30,310.76, 41,815.38 and 17,729.96

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Solution

The fourth proportional to 30,310.76, 41,815.38 and 17,729.96 is: 24,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,310.76 : 41,815.38 = 17,729.96 : x
  2. Step 2: Convert to fraction form
    30,310.76/41,815.38 = 17,729.96/x
  3. Step 3: Cross multiply
    30,310.76x = 41,815.38 × 17,729.96
  4. Step 4: Simplify right side
    30,310.76x = 741,385,014.78
  5. Step 5: Solve for x
    x = 741,385,014.78/30,310.76
  6. Step 6: Final answer
    x = 24,459.47

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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.