Home / 23,179.52-31,986.45-13,107.40

Finding the Fourth Proportional to 23,179.52, 31,986.45 and 13,107.40

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Solution

The fourth proportional to 23,179.52, 31,986.45 and 13,107.40 is: 18,087.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,179.52 : 31,986.45 = 13,107.40 : x
  2. Step 2: Convert to fraction form
    23,179.52/31,986.45 = 13,107.40/x
  3. Step 3: Cross multiply
    23,179.52x = 31,986.45 × 13,107.40
  4. Step 4: Simplify right side
    23,179.52x = 419,259,114.76
  5. Step 5: Solve for x
    x = 419,259,114.76/23,179.52
  6. Step 6: Final answer
    x = 18,087.48

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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.