Home / 31,639.65-43,660.51-17,491.38

Finding the Fourth Proportional to 31,639.65, 43,660.51 and 17,491.38

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Solution

The fourth proportional to 31,639.65, 43,660.51 and 17,491.38 is: 24,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,639.65 : 43,660.51 = 17,491.38 : x
  2. Step 2: Convert to fraction form
    31,639.65/43,660.51 = 17,491.38/x
  3. Step 3: Cross multiply
    31,639.65x = 43,660.51 × 17,491.38
  4. Step 4: Simplify right side
    31,639.65x = 763,682,571.40
  5. Step 5: Solve for x
    x = 763,682,571.40/31,639.65
  6. Step 6: Final answer
    x = 24,136.88

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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.