Home / 20,033.76-29,975.31-12,303.93

Finding the Fourth Proportional to 20,033.76, 29,975.31 and 12,303.93

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Solution

The fourth proportional to 20,033.76, 29,975.31 and 12,303.93 is: 18,409.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,033.76 : 29,975.31 = 12,303.93 : x
  2. Step 2: Convert to fraction form
    20,033.76/29,975.31 = 12,303.93/x
  3. Step 3: Cross multiply
    20,033.76x = 29,975.31 × 12,303.93
  4. Step 4: Simplify right side
    20,033.76x = 368,814,115.97
  5. Step 5: Solve for x
    x = 368,814,115.97/20,033.76
  6. Step 6: Final answer
    x = 18,409.63

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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.