Home / 31,728.24-47,542.96-11,996.08

Finding the Fourth Proportional to 31,728.24, 47,542.96 and 11,996.08

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Solution

The fourth proportional to 31,728.24, 47,542.96 and 11,996.08 is: 17,975.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.24 : 47,542.96 = 11,996.08 : x
  2. Step 2: Convert to fraction form
    31,728.24/47,542.96 = 11,996.08/x
  3. Step 3: Cross multiply
    31,728.24x = 47,542.96 × 11,996.08
  4. Step 4: Simplify right side
    31,728.24x = 570,329,151.60
  5. Step 5: Solve for x
    x = 570,329,151.60/31,728.24
  6. Step 6: Final answer
    x = 17,975.44

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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.