Home / 20,134.05-27,788.61-11,635.00

Finding the Fourth Proportional to 20,134.05, 27,788.61 and 11,635.00

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Solution

The fourth proportional to 20,134.05, 27,788.61 and 11,635.00 is: 16,058.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.05 : 27,788.61 = 11,635.00 : x
  2. Step 2: Convert to fraction form
    20,134.05/27,788.61 = 11,635.00/x
  3. Step 3: Cross multiply
    20,134.05x = 27,788.61 × 11,635.00
  4. Step 4: Simplify right side
    20,134.05x = 323,320,496.94
  5. Step 5: Solve for x
    x = 323,320,496.94/20,134.05
  6. Step 6: Final answer
    x = 16,058.39

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1.5x scale

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.