Home / 31,213.25-46,810.11-10,431.89

Finding the Fourth Proportional to 31,213.25, 46,810.11 and 10,431.89

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Solution

The fourth proportional to 31,213.25, 46,810.11 and 10,431.89 is: 15,644.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,213.25 : 46,810.11 = 10,431.89 : x
  2. Step 2: Convert to fraction form
    31,213.25/46,810.11 = 10,431.89/x
  3. Step 3: Cross multiply
    31,213.25x = 46,810.11 × 10,431.89
  4. Step 4: Simplify right side
    31,213.25x = 488,317,918.41
  5. Step 5: Solve for x
    x = 488,317,918.41/31,213.25
  6. Step 6: Final answer
    x = 15,644.57

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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.