Home / 20,833.70-31,244.35-11,344.50

Finding the Fourth Proportional to 20,833.70, 31,244.35 and 11,344.50

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Solution

The fourth proportional to 20,833.70, 31,244.35 and 11,344.50 is: 17,013.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.70 : 31,244.35 = 11,344.50 : x
  2. Step 2: Convert to fraction form
    20,833.70/31,244.35 = 11,344.50/x
  3. Step 3: Cross multiply
    20,833.70x = 31,244.35 × 11,344.50
  4. Step 4: Simplify right side
    20,833.70x = 354,451,528.58
  5. Step 5: Solve for x
    x = 354,451,528.58/20,833.70
  6. Step 6: Final answer
    x = 17,013.37

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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.