Home / 31,946.68-47,911.80-13,231.96

Finding the Fourth Proportional to 31,946.68, 47,911.80 and 13,231.96

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Solution

The fourth proportional to 31,946.68, 47,911.80 and 13,231.96 is: 19,844.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,946.68 : 47,911.80 = 13,231.96 : x
  2. Step 2: Convert to fraction form
    31,946.68/47,911.80 = 13,231.96/x
  3. Step 3: Cross multiply
    31,946.68x = 47,911.80 × 13,231.96
  4. Step 4: Simplify right side
    31,946.68x = 633,967,021.13
  5. Step 5: Solve for x
    x = 633,967,021.13/31,946.68
  6. Step 6: Final answer
    x = 19,844.54

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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.