Home / 23,072-31,839.36-13,137.92

Finding the Fourth Proportional to 23,072, 31,839.36 and 13,137.92

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Solution

The fourth proportional to 23,072, 31,839.36 and 13,137.92 is: 18,130.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,072 : 31,839.36 = 13,137.92 : x
  2. Step 2: Convert to fraction form
    23,072/31,839.36 = 13,137.92/x
  3. Step 3: Cross multiply
    23,072x = 31,839.36 × 13,137.92
  4. Step 4: Simplify right side
    23,072x = 418,302,964.53
  5. Step 5: Solve for x
    x = 418,302,964.53/23,072
  6. Step 6: Final answer
    x = 18,130.33

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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.