Home / 22,788-31,448.67-13,359.60

Finding the Fourth Proportional to 22,788, 31,448.67 and 13,359.60

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Solution

The fourth proportional to 22,788, 31,448.67 and 13,359.60 is: 18,436.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,788 : 31,448.67 = 13,359.60 : x
  2. Step 2: Convert to fraction form
    22,788/31,448.67 = 13,359.60/x
  3. Step 3: Cross multiply
    22,788x = 31,448.67 × 13,359.60
  4. Step 4: Simplify right side
    22,788x = 420,141,651.73
  5. Step 5: Solve for x
    x = 420,141,651.73/22,788
  6. Step 6: Final answer
    x = 18,436.97

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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.