Home / 23,121.33-31,905.92-13,048.40

Finding the Fourth Proportional to 23,121.33, 31,905.92 and 13,048.40

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Solution

The fourth proportional to 23,121.33, 31,905.92 and 13,048.40 is: 18,005.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,121.33 : 31,905.92 = 13,048.40 : x
  2. Step 2: Convert to fraction form
    23,121.33/31,905.92 = 13,048.40/x
  3. Step 3: Cross multiply
    23,121.33x = 31,905.92 × 13,048.40
  4. Step 4: Simplify right side
    23,121.33x = 416,321,177.93
  5. Step 5: Solve for x
    x = 416,321,177.93/23,121.33
  6. Step 6: Final answer
    x = 18,005.94

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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.