Home / 20,491.67-30,714.93-8,009.36

Finding the Fourth Proportional to 20,491.67, 30,714.93 and 8,009.36

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Solution

The fourth proportional to 20,491.67, 30,714.93 and 8,009.36 is: 12,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,491.67 : 30,714.93 = 8,009.36 : x
  2. Step 2: Convert to fraction form
    20,491.67/30,714.93 = 8,009.36/x
  3. Step 3: Cross multiply
    20,491.67x = 30,714.93 × 8,009.36
  4. Step 4: Simplify right side
    20,491.67x = 246,006,778.17
  5. Step 5: Solve for x
    x = 246,006,778.17/20,491.67
  6. Step 6: Final answer
    x = 12,005.21

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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.