Home / 19,961.12-29,943.98-6,635.30

Finding the Fourth Proportional to 19,961.12, 29,943.98 and 6,635.30

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Solution

The fourth proportional to 19,961.12, 29,943.98 and 6,635.30 is: 9,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.12 : 29,943.98 = 6,635.30 : x
  2. Step 2: Convert to fraction form
    19,961.12/29,943.98 = 6,635.30/x
  3. Step 3: Cross multiply
    19,961.12x = 29,943.98 × 6,635.30
  4. Step 4: Simplify right side
    19,961.12x = 198,687,140.77
  5. Step 5: Solve for x
    x = 198,687,140.77/19,961.12
  6. Step 6: Final answer
    x = 9,953.71

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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.