Home / 20,941.26-28,900.59-11,991.58

Finding the Fourth Proportional to 20,941.26, 28,900.59 and 11,991.58

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Solution

The fourth proportional to 20,941.26, 28,900.59 and 11,991.58 is: 16,549.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.26 : 28,900.59 = 11,991.58 : x
  2. Step 2: Convert to fraction form
    20,941.26/28,900.59 = 11,991.58/x
  3. Step 3: Cross multiply
    20,941.26x = 28,900.59 × 11,991.58
  4. Step 4: Simplify right side
    20,941.26x = 346,563,737.03
  5. Step 5: Solve for x
    x = 346,563,737.03/20,941.26
  6. Step 6: Final answer
    x = 16,549.33

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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.