Home / 21,276.86-29,360.73-12,773.96

Finding the Fourth Proportional to 21,276.86, 29,360.73 and 12,773.96

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Solution

The fourth proportional to 21,276.86, 29,360.73 and 12,773.96 is: 17,627.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.86 : 29,360.73 = 12,773.96 : x
  2. Step 2: Convert to fraction form
    21,276.86/29,360.73 = 12,773.96/x
  3. Step 3: Cross multiply
    21,276.86x = 29,360.73 × 12,773.96
  4. Step 4: Simplify right side
    21,276.86x = 375,052,791.00
  5. Step 5: Solve for x
    x = 375,052,791.00/21,276.86
  6. Step 6: Final answer
    x = 17,627.26

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Why These Related Problems?

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