Home / 20,585.69-28,409.36-11,633.57

Finding the Fourth Proportional to 20,585.69, 28,409.36 and 11,633.57

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Solution

The fourth proportional to 20,585.69, 28,409.36 and 11,633.57 is: 16,054.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585.69 : 28,409.36 = 11,633.57 : x
  2. Step 2: Convert to fraction form
    20,585.69/28,409.36 = 11,633.57/x
  3. Step 3: Cross multiply
    20,585.69x = 28,409.36 × 11,633.57
  4. Step 4: Simplify right side
    20,585.69x = 330,502,278.22
  5. Step 5: Solve for x
    x = 330,502,278.22/20,585.69
  6. Step 6: Final answer
    x = 16,054.95

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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.