Home / 31,992.80-47,924.40-18,125.60

Finding the Fourth Proportional to 31,992.80, 47,924.40 and 18,125.60

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Solution

The fourth proportional to 31,992.80, 47,924.40 and 18,125.60 is: 27,151.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,992.80 : 47,924.40 = 18,125.60 : x
  2. Step 2: Convert to fraction form
    31,992.80/47,924.40 = 18,125.60/x
  3. Step 3: Cross multiply
    31,992.80x = 47,924.40 × 18,125.60
  4. Step 4: Simplify right side
    31,992.80x = 868,658,504.64
  5. Step 5: Solve for x
    x = 868,658,504.64/31,992.80
  6. Step 6: Final answer
    x = 27,151.69

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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.