Home / 30,121.50-41,566.70-18,182.76

Finding the Fourth Proportional to 30,121.50, 41,566.70 and 18,182.76

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Solution

The fourth proportional to 30,121.50, 41,566.70 and 18,182.76 is: 25,091.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.50 : 41,566.70 = 18,182.76 : x
  2. Step 2: Convert to fraction form
    30,121.50/41,566.70 = 18,182.76/x
  3. Step 3: Cross multiply
    30,121.50x = 41,566.70 × 18,182.76
  4. Step 4: Simplify right side
    30,121.50x = 755,797,239.18
  5. Step 5: Solve for x
    x = 755,797,239.18/30,121.50
  6. Step 6: Final answer
    x = 25,091.62

Related Problems

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Half scale
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Double scale
Find fourth proportional to 30,122.50, 41,568.07 and 18,183.76
Similar ratio
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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.