Home / 20,080.09-27,709.77-11,582.56

Finding the Fourth Proportional to 20,080.09, 27,709.77 and 11,582.56

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Solution

The fourth proportional to 20,080.09, 27,709.77 and 11,582.56 is: 15,983.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.09 : 27,709.77 = 11,582.56 : x
  2. Step 2: Convert to fraction form
    20,080.09/27,709.77 = 11,582.56/x
  3. Step 3: Cross multiply
    20,080.09x = 27,709.77 × 11,582.56
  4. Step 4: Simplify right side
    20,080.09x = 320,950,073.61
  5. Step 5: Solve for x
    x = 320,950,073.61/20,080.09
  6. Step 6: Final answer
    x = 15,983.50

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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.