Home / 21,049.16-29,051.60-12,551.84

Finding the Fourth Proportional to 21,049.16, 29,051.60 and 12,551.84

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Solution

The fourth proportional to 21,049.16, 29,051.60 and 12,551.84 is: 17,323.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.16 : 29,051.60 = 12,551.84 : x
  2. Step 2: Convert to fraction form
    21,049.16/29,051.60 = 12,551.84/x
  3. Step 3: Cross multiply
    21,049.16x = 29,051.60 × 12,551.84
  4. Step 4: Simplify right side
    21,049.16x = 364,651,034.94
  5. Step 5: Solve for x
    x = 364,651,034.94/21,049.16
  6. Step 6: Final answer
    x = 17,323.78

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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.