Home / 20,542,385.88-28,349,346.78-11,375,028.36

Finding the Fourth Proportional to 20,542,385.88, 28,349,346.78 and 11,375,028.36

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Solution

The fourth proportional to 20,542,385.88, 28,349,346.78 and 11,375,028.36 is: 15,698,012.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542,385.88 : 28,349,346.78 = 11,375,028.36 : x
  2. Step 2: Convert to fraction form
    20,542,385.88/28,349,346.78 = 11,375,028.36/x
  3. Step 3: Cross multiply
    20,542,385.88x = 28,349,346.78 × 11,375,028.36
  4. Step 4: Simplify right side
    20,542,385.88x = 322,474,623,609,974.69
  5. Step 5: Solve for x
    x = 322,474,623,609,974.69/20,542,385.88
  6. Step 6: Final answer
    x = 15,698,012.17

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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.