Home / 20,929.44-31,397.22-6,884.82

Finding the Fourth Proportional to 20,929.44, 31,397.22 and 6,884.82

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Solution

The fourth proportional to 20,929.44, 31,397.22 and 6,884.82 is: 10,328.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.44 : 31,397.22 = 6,884.82 : x
  2. Step 2: Convert to fraction form
    20,929.44/31,397.22 = 6,884.82/x
  3. Step 3: Cross multiply
    20,929.44x = 31,397.22 × 6,884.82
  4. Step 4: Simplify right side
    20,929.44x = 216,164,208.20
  5. Step 5: Solve for x
    x = 216,164,208.20/20,929.44
  6. Step 6: Final answer
    x = 10,328.24

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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.