Home / 23,141.68-31,935.60-12,531.28

Finding the Fourth Proportional to 23,141.68, 31,935.60 and 12,531.28

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Solution

The fourth proportional to 23,141.68, 31,935.60 and 12,531.28 is: 17,293.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,141.68 : 31,935.60 = 12,531.28 : x
  2. Step 2: Convert to fraction form
    23,141.68/31,935.60 = 12,531.28/x
  3. Step 3: Cross multiply
    23,141.68x = 31,935.60 × 12,531.28
  4. Step 4: Simplify right side
    23,141.68x = 400,193,945.57
  5. Step 5: Solve for x
    x = 400,193,945.57/23,141.68
  6. Step 6: Final answer
    x = 17,293.21

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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.