Home / 23,128.23-31,916.99-12,517.84

Finding the Fourth Proportional to 23,128.23, 31,916.99 and 12,517.84

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Solution

The fourth proportional to 23,128.23, 31,916.99 and 12,517.84 is: 17,274.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,128.23 : 31,916.99 = 12,517.84 : x
  2. Step 2: Convert to fraction form
    23,128.23/31,916.99 = 12,517.84/x
  3. Step 3: Cross multiply
    23,128.23x = 31,916.99 × 12,517.84
  4. Step 4: Simplify right side
    23,128.23x = 399,531,774.88
  5. Step 5: Solve for x
    x = 399,531,774.88/23,128.23
  6. Step 6: Final answer
    x = 17,274.63

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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.