Home / 20,982.46-28,954.93-12,029.43

Finding the Fourth Proportional to 20,982.46, 28,954.93 and 12,029.43

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Solution

The fourth proportional to 20,982.46, 28,954.93 and 12,029.43 is: 16,600.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.46 : 28,954.93 = 12,029.43 : x
  2. Step 2: Convert to fraction form
    20,982.46/28,954.93 = 12,029.43/x
  3. Step 3: Cross multiply
    20,982.46x = 28,954.93 × 12,029.43
  4. Step 4: Simplify right side
    20,982.46x = 348,311,303.59
  5. Step 5: Solve for x
    x = 348,311,303.59/20,982.46
  6. Step 6: Final answer
    x = 16,600.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.