Home / 19,761.19-29,644.52-8,071.67

Finding the Fourth Proportional to 19,761.19, 29,644.52 and 8,071.67

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Solution

The fourth proportional to 19,761.19, 29,644.52 and 8,071.67 is: 12,108.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.19 : 29,644.52 = 8,071.67 : x
  2. Step 2: Convert to fraction form
    19,761.19/29,644.52 = 8,071.67/x
  3. Step 3: Cross multiply
    19,761.19x = 29,644.52 × 8,071.67
  4. Step 4: Simplify right side
    19,761.19x = 239,280,782.75
  5. Step 5: Solve for x
    x = 239,280,782.75/19,761.19
  6. Step 6: Final answer
    x = 12,108.62

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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.