Home / 34,235.20-51,352.80-19,489.60

Finding the Fourth Proportional to 34,235.20, 51,352.80 and 19,489.60

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Solution

The fourth proportional to 34,235.20, 51,352.80 and 19,489.60 is: 29,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,235.20 : 51,352.80 = 19,489.60 : x
  2. Step 2: Convert to fraction form
    34,235.20/51,352.80 = 19,489.60/x
  3. Step 3: Cross multiply
    34,235.20x = 51,352.80 × 19,489.60
  4. Step 4: Simplify right side
    34,235.20x = 1,000,845,530.88
  5. Step 5: Solve for x
    x = 1,000,845,530.88/34,235.20
  6. Step 6: Final answer
    x = 29,234.40

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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.