Home / 23,128.03-31,916.78-12,517.66

Finding the Fourth Proportional to 23,128.03, 31,916.78 and 12,517.66

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Solution

The fourth proportional to 23,128.03, 31,916.78 and 12,517.66 is: 17,274.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,128.03 : 31,916.78 = 12,517.66 : x
  2. Step 2: Convert to fraction form
    23,128.03/31,916.78 = 12,517.66/x
  3. Step 3: Cross multiply
    23,128.03x = 31,916.78 × 12,517.66
  4. Step 4: Simplify right side
    23,128.03x = 399,523,400.33
  5. Step 5: Solve for x
    x = 399,523,400.33/23,128.03
  6. Step 6: Final answer
    x = 17,274.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.