Home / 20,730.26-31,089.69-5,733.79

Finding the Fourth Proportional to 20,730.26, 31,089.69 and 5,733.79

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Solution

The fourth proportional to 20,730.26, 31,089.69 and 5,733.79 is: 8,599.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730.26 : 31,089.69 = 5,733.79 : x
  2. Step 2: Convert to fraction form
    20,730.26/31,089.69 = 5,733.79/x
  3. Step 3: Cross multiply
    20,730.26x = 31,089.69 × 5,733.79
  4. Step 4: Simplify right side
    20,730.26x = 178,261,675.90
  5. Step 5: Solve for x
    x = 178,261,675.90/20,730.26
  6. Step 6: Final answer
    x = 8,599.10

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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.