Home / 39,942.32-55,120.70-22,037.27

Finding the Fourth Proportional to 39,942.32, 55,120.70 and 22,037.27

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Solution

The fourth proportional to 39,942.32, 55,120.70 and 22,037.27 is: 30,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,942.32 : 55,120.70 = 22,037.27 : x
  2. Step 2: Convert to fraction form
    39,942.32/55,120.70 = 22,037.27/x
  3. Step 3: Cross multiply
    39,942.32x = 55,120.70 × 22,037.27
  4. Step 4: Simplify right side
    39,942.32x = 1,214,709,527.98
  5. Step 5: Solve for x
    x = 1,214,709,527.98/39,942.32
  6. Step 6: Final answer
    x = 30,411.60

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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.