Home / 23,119.26-31,905.39-13,047.12

Finding the Fourth Proportional to 23,119.26, 31,905.39 and 13,047.12

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Solution

The fourth proportional to 23,119.26, 31,905.39 and 13,047.12 is: 18,005.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,119.26 : 31,905.39 = 13,047.12 : x
  2. Step 2: Convert to fraction form
    23,119.26/31,905.39 = 13,047.12/x
  3. Step 3: Cross multiply
    23,119.26x = 31,905.39 × 13,047.12
  4. Step 4: Simplify right side
    23,119.26x = 416,273,451.98
  5. Step 5: Solve for x
    x = 416,273,451.98/23,119.26
  6. Step 6: Final answer
    x = 18,005.48

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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.