Home / 28,809.33-43,213.78-13,005.82

Finding the Fourth Proportional to 28,809.33, 43,213.78 and 13,005.82

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Solution

The fourth proportional to 28,809.33, 43,213.78 and 13,005.82 is: 19,508.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,809.33 : 43,213.78 = 13,005.82 : x
  2. Step 2: Convert to fraction form
    28,809.33/43,213.78 = 13,005.82/x
  3. Step 3: Cross multiply
    28,809.33x = 43,213.78 × 13,005.82
  4. Step 4: Simplify right side
    28,809.33x = 562,030,644.20
  5. Step 5: Solve for x
    x = 562,030,644.20/28,809.33
  6. Step 6: Final answer
    x = 19,508.63

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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.