Home / 20,323.92-28,043.64-11,942.04

Finding the Fourth Proportional to 20,323.92, 28,043.64 and 11,942.04

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Solution

The fourth proportional to 20,323.92, 28,043.64 and 11,942.04 is: 16,478.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.92 : 28,043.64 = 11,942.04 : x
  2. Step 2: Convert to fraction form
    20,323.92/28,043.64 = 11,942.04/x
  3. Step 3: Cross multiply
    20,323.92x = 28,043.64 × 11,942.04
  4. Step 4: Simplify right side
    20,323.92x = 334,898,270.63
  5. Step 5: Solve for x
    x = 334,898,270.63/20,323.92
  6. Step 6: Final answer
    x = 16,478.04

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1.5x scale

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.