Home / 20,984.26-31,476.52-5,402.02

Finding the Fourth Proportional to 20,984.26, 31,476.52 and 5,402.02

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Solution

The fourth proportional to 20,984.26, 31,476.52 and 5,402.02 is: 8,103.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.26 : 31,476.52 = 5,402.02 : x
  2. Step 2: Convert to fraction form
    20,984.26/31,476.52 = 5,402.02/x
  3. Step 3: Cross multiply
    20,984.26x = 31,476.52 × 5,402.02
  4. Step 4: Simplify right side
    20,984.26x = 170,036,790.57
  5. Step 5: Solve for x
    x = 170,036,790.57/20,984.26
  6. Step 6: Final answer
    x = 8,103.06

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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.