Home / 31,939.08-47,902.44-12,213

Finding the Fourth Proportional to 31,939.08, 47,902.44 and 12,213

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Solution

The fourth proportional to 31,939.08, 47,902.44 and 12,213 is: 18,317.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,939.08 : 47,902.44 = 12,213 : x
  2. Step 2: Convert to fraction form
    31,939.08/47,902.44 = 12,213/x
  3. Step 3: Cross multiply
    31,939.08x = 47,902.44 × 12,213
  4. Step 4: Simplify right side
    31,939.08x = 585,032,499.72
  5. Step 5: Solve for x
    x = 585,032,499.72/31,939.08
  6. Step 6: Final answer
    x = 18,317.14

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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.