Home / 23,120.88-31,908.25-13,045.64

Finding the Fourth Proportional to 23,120.88, 31,908.25 and 13,045.64

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Solution

The fourth proportional to 23,120.88, 31,908.25 and 13,045.64 is: 18,003.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,120.88 : 31,908.25 = 13,045.64 : x
  2. Step 2: Convert to fraction form
    23,120.88/31,908.25 = 13,045.64/x
  3. Step 3: Cross multiply
    23,120.88x = 31,908.25 × 13,045.64
  4. Step 4: Simplify right side
    23,120.88x = 416,263,505.40
  5. Step 5: Solve for x
    x = 416,263,505.40/23,120.88
  6. Step 6: Final answer
    x = 18,003.79

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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.