Home / 21,180.20-29,223.96-12,796.52

Finding the Fourth Proportional to 21,180.20, 29,223.96 and 12,796.52

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Solution

The fourth proportional to 21,180.20, 29,223.96 and 12,796.52 is: 17,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180.20 : 29,223.96 = 12,796.52 : x
  2. Step 2: Convert to fraction form
    21,180.20/29,223.96 = 12,796.52/x
  3. Step 3: Cross multiply
    21,180.20x = 29,223.96 × 12,796.52
  4. Step 4: Simplify right side
    21,180.20x = 373,964,988.62
  5. Step 5: Solve for x
    x = 373,964,988.62/21,180.20
  6. Step 6: Final answer
    x = 17,656.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.