Home / 28,718.93-39,626.26-16,779.96

Finding the Fourth Proportional to 28,718.93, 39,626.26 and 16,779.96

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Solution

The fourth proportional to 28,718.93, 39,626.26 and 16,779.96 is: 23,152.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.93 : 39,626.26 = 16,779.96 : x
  2. Step 2: Convert to fraction form
    28,718.93/39,626.26 = 16,779.96/x
  3. Step 3: Cross multiply
    28,718.93x = 39,626.26 × 16,779.96
  4. Step 4: Simplify right side
    28,718.93x = 664,927,078.72
  5. Step 5: Solve for x
    x = 664,927,078.72/28,718.93
  6. Step 6: Final answer
    x = 23,152.92

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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.