Home / 20,676.06-31,013.28-5,093.28

Finding the Fourth Proportional to 20,676.06, 31,013.28 and 5,093.28

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Solution

The fourth proportional to 20,676.06, 31,013.28 and 5,093.28 is: 7,639.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.06 : 31,013.28 = 5,093.28 : x
  2. Step 2: Convert to fraction form
    20,676.06/31,013.28 = 5,093.28/x
  3. Step 3: Cross multiply
    20,676.06x = 31,013.28 × 5,093.28
  4. Step 4: Simplify right side
    20,676.06x = 157,959,318.76
  5. Step 5: Solve for x
    x = 157,959,318.76/20,676.06
  6. Step 6: Final answer
    x = 7,639.72

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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.