Home / 20,376.41-30,567.86-8,689.73

Finding the Fourth Proportional to 20,376.41, 30,567.86 and 8,689.73

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Solution

The fourth proportional to 20,376.41, 30,567.86 and 8,689.73 is: 13,035.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,376.41 : 30,567.86 = 8,689.73 : x
  2. Step 2: Convert to fraction form
    20,376.41/30,567.86 = 8,689.73/x
  3. Step 3: Cross multiply
    20,376.41x = 30,567.86 × 8,689.73
  4. Step 4: Simplify right side
    20,376.41x = 265,626,450.08
  5. Step 5: Solve for x
    x = 265,626,450.08/20,376.41
  6. Step 6: Final answer
    x = 13,035.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.