Home / 40,411.20-60,573.60-18,220.80

Finding the Fourth Proportional to 40,411.20, 60,573.60 and 18,220.80

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Solution

The fourth proportional to 40,411.20, 60,573.60 and 18,220.80 is: 27,311.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,411.20 : 60,573.60 = 18,220.80 : x
  2. Step 2: Convert to fraction form
    40,411.20/60,573.60 = 18,220.80/x
  3. Step 3: Cross multiply
    40,411.20x = 60,573.60 × 18,220.80
  4. Step 4: Simplify right side
    40,411.20x = 1,103,699,450.88
  5. Step 5: Solve for x
    x = 1,103,699,450.88/40,411.20
  6. Step 6: Final answer
    x = 27,311.72

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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.