Home / 39,942.14-55,119.78-22,037.30

Finding the Fourth Proportional to 39,942.14, 55,119.78 and 22,037.30

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Solution

The fourth proportional to 39,942.14, 55,119.78 and 22,037.30 is: 30,411.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,942.14 : 55,119.78 = 22,037.30 : x
  2. Step 2: Convert to fraction form
    39,942.14/55,119.78 = 22,037.30/x
  3. Step 3: Cross multiply
    39,942.14x = 55,119.78 × 22,037.30
  4. Step 4: Simplify right side
    39,942.14x = 1,214,691,127.79
  5. Step 5: Solve for x
    x = 1,214,691,127.79/39,942.14
  6. Step 6: Final answer
    x = 30,411.27

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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.