Home / 19,305.21-28,901.48-11,887.41

Finding the Fourth Proportional to 19,305.21, 28,901.48 and 11,887.41

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Solution

The fourth proportional to 19,305.21, 28,901.48 and 11,887.41 is: 17,796.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305.21 : 28,901.48 = 11,887.41 : x
  2. Step 2: Convert to fraction form
    19,305.21/28,901.48 = 11,887.41/x
  3. Step 3: Cross multiply
    19,305.21x = 28,901.48 × 11,887.41
  4. Step 4: Simplify right side
    19,305.21x = 343,563,682.93
  5. Step 5: Solve for x
    x = 343,563,682.93/19,305.21
  6. Step 6: Final answer
    x = 17,796.42

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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.