Home / 19,388.45-29,027.90-15,809.36

Finding the Fourth Proportional to 19,388.45, 29,027.90 and 15,809.36

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Solution

The fourth proportional to 19,388.45, 29,027.90 and 15,809.36 is: 23,669.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388.45 : 29,027.90 = 15,809.36 : x
  2. Step 2: Convert to fraction form
    19,388.45/29,027.90 = 15,809.36/x
  3. Step 3: Cross multiply
    19,388.45x = 29,027.90 × 15,809.36
  4. Step 4: Simplify right side
    19,388.45x = 458,912,415.53
  5. Step 5: Solve for x
    x = 458,912,415.53/19,388.45
  6. Step 6: Final answer
    x = 23,669.37

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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.