Home / 23,128.24-31,916.96-12,517.87

Finding the Fourth Proportional to 23,128.24, 31,916.96 and 12,517.87

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Solution

The fourth proportional to 23,128.24, 31,916.96 and 12,517.87 is: 17,274.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,128.24 : 31,916.96 = 12,517.87 : x
  2. Step 2: Convert to fraction form
    23,128.24/31,916.96 = 12,517.87/x
  3. Step 3: Cross multiply
    23,128.24x = 31,916.96 × 12,517.87
  4. Step 4: Simplify right side
    23,128.24x = 399,532,133.90
  5. Step 5: Solve for x
    x = 399,532,133.90/23,128.24
  6. Step 6: Final answer
    x = 17,274.65

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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.