Home / 19,520.11-29,285.70-7,841.53

Finding the Fourth Proportional to 19,520.11, 29,285.70 and 7,841.53

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Solution

The fourth proportional to 19,520.11, 29,285.70 and 7,841.53 is: 11,764.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.11 : 29,285.70 = 7,841.53 : x
  2. Step 2: Convert to fraction form
    19,520.11/29,285.70 = 7,841.53/x
  3. Step 3: Cross multiply
    19,520.11x = 29,285.70 × 7,841.53
  4. Step 4: Simplify right side
    19,520.11x = 229,644,695.12
  5. Step 5: Solve for x
    x = 229,644,695.12/19,520.11
  6. Step 6: Final answer
    x = 11,764.52

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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.