Home / 23,142.06-31,935.86-12,531.44

Finding the Fourth Proportional to 23,142.06, 31,935.86 and 12,531.44

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Solution

The fourth proportional to 23,142.06, 31,935.86 and 12,531.44 is: 17,293.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,142.06 : 31,935.86 = 12,531.44 : x
  2. Step 2: Convert to fraction form
    23,142.06/31,935.86 = 12,531.44/x
  3. Step 3: Cross multiply
    23,142.06x = 31,935.86 × 12,531.44
  4. Step 4: Simplify right side
    23,142.06x = 400,202,313.44
  5. Step 5: Solve for x
    x = 400,202,313.44/23,142.06
  6. Step 6: Final answer
    x = 17,293.29

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1.5x scale

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.