Home / 20,894.64-31,346.28-7,044.72

Finding the Fourth Proportional to 20,894.64, 31,346.28 and 7,044.72

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Solution

The fourth proportional to 20,894.64, 31,346.28 and 7,044.72 is: 10,568.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.64 : 31,346.28 = 7,044.72 : x
  2. Step 2: Convert to fraction form
    20,894.64/31,346.28 = 7,044.72/x
  3. Step 3: Cross multiply
    20,894.64x = 31,346.28 × 7,044.72
  4. Step 4: Simplify right side
    20,894.64x = 220,825,765.64
  5. Step 5: Solve for x
    x = 220,825,765.64/20,894.64
  6. Step 6: Final answer
    x = 10,568.54

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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.