Home / 31,685.08-47,519.46-11,957.80

Finding the Fourth Proportional to 31,685.08, 47,519.46 and 11,957.80

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Solution

The fourth proportional to 31,685.08, 47,519.46 and 11,957.80 is: 17,933.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,685.08 : 47,519.46 = 11,957.80 : x
  2. Step 2: Convert to fraction form
    31,685.08/47,519.46 = 11,957.80/x
  3. Step 3: Cross multiply
    31,685.08x = 47,519.46 × 11,957.80
  4. Step 4: Simplify right side
    31,685.08x = 568,228,198.79
  5. Step 5: Solve for x
    x = 568,228,198.79/31,685.08
  6. Step 6: Final answer
    x = 17,933.62

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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.