Home / 23,178.62-31,986.23-13,107.17

Finding the Fourth Proportional to 23,178.62, 31,986.23 and 13,107.17

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Solution

The fourth proportional to 23,178.62, 31,986.23 and 13,107.17 is: 18,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,178.62 : 31,986.23 = 13,107.17 : x
  2. Step 2: Convert to fraction form
    23,178.62/31,986.23 = 13,107.17/x
  3. Step 3: Cross multiply
    23,178.62x = 31,986.23 × 13,107.17
  4. Step 4: Simplify right side
    23,178.62x = 419,248,728.80
  5. Step 5: Solve for x
    x = 419,248,728.80/23,178.62
  6. Step 6: Final answer
    x = 18,087.74

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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.