Home / 20,410.73-28,165.24-11,456.49

Finding the Fourth Proportional to 20,410.73, 28,165.24 and 11,456.49

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Solution

The fourth proportional to 20,410.73, 28,165.24 and 11,456.49 is: 15,809.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.73 : 28,165.24 = 11,456.49 : x
  2. Step 2: Convert to fraction form
    20,410.73/28,165.24 = 11,456.49/x
  3. Step 3: Cross multiply
    20,410.73x = 28,165.24 × 11,456.49
  4. Step 4: Simplify right side
    20,410.73x = 322,674,790.41
  5. Step 5: Solve for x
    x = 322,674,790.41/20,410.73
  6. Step 6: Final answer
    x = 15,809.08

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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.