Home / 15,210.65-22,789.82-13,669.90

Finding the Fourth Proportional to 15,210.65, 22,789.82 and 13,669.90

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Solution

The fourth proportional to 15,210.65, 22,789.82 and 13,669.90 is: 20,481.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.65 : 22,789.82 = 13,669.90 : x
  2. Step 2: Convert to fraction form
    15,210.65/22,789.82 = 13,669.90/x
  3. Step 3: Cross multiply
    15,210.65x = 22,789.82 × 13,669.90
  4. Step 4: Simplify right side
    15,210.65x = 311,534,537.62
  5. Step 5: Solve for x
    x = 311,534,537.62/15,210.65
  6. Step 6: Final answer
    x = 20,481.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.