Home / 31,632.30-43,651.41-18,205.62

Finding the Fourth Proportional to 31,632.30, 43,651.41 and 18,205.62

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Solution

The fourth proportional to 31,632.30, 43,651.41 and 18,205.62 is: 25,123.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,632.30 : 43,651.41 = 18,205.62 : x
  2. Step 2: Convert to fraction form
    31,632.30/43,651.41 = 18,205.62/x
  3. Step 3: Cross multiply
    31,632.30x = 43,651.41 × 18,205.62
  4. Step 4: Simplify right side
    31,632.30x = 794,700,982.92
  5. Step 5: Solve for x
    x = 794,700,982.92/31,632.30
  6. Step 6: Final answer
    x = 25,123.09

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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.