Home / 43,107.12-64,660.68-11,942.38

Finding the Fourth Proportional to 43,107.12, 64,660.68 and 11,942.38

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Solution

The fourth proportional to 43,107.12, 64,660.68 and 11,942.38 is: 17,913.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,107.12 : 64,660.68 = 11,942.38 : x
  2. Step 2: Convert to fraction form
    43,107.12/64,660.68 = 11,942.38/x
  3. Step 3: Cross multiply
    43,107.12x = 64,660.68 × 11,942.38
  4. Step 4: Simplify right side
    43,107.12x = 772,202,411.62
  5. Step 5: Solve for x
    x = 772,202,411.62/43,107.12
  6. Step 6: Final answer
    x = 17,913.57

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1.5x scale

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.