Home / 23,131.36-31,920.57-13,059.64

Finding the Fourth Proportional to 23,131.36, 31,920.57 and 13,059.64

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Solution

The fourth proportional to 23,131.36, 31,920.57 and 13,059.64 is: 18,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,131.36 : 31,920.57 = 13,059.64 : x
  2. Step 2: Convert to fraction form
    23,131.36/31,920.57 = 13,059.64/x
  3. Step 3: Cross multiply
    23,131.36x = 31,920.57 × 13,059.64
  4. Step 4: Simplify right side
    23,131.36x = 416,871,152.79
  5. Step 5: Solve for x
    x = 416,871,152.79/23,131.36
  6. Step 6: Final answer
    x = 18,021.90

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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.