Home / 20,051.09-27,671.79-11,553.05

Finding the Fourth Proportional to 20,051.09, 27,671.79 and 11,553.05

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Solution

The fourth proportional to 20,051.09, 27,671.79 and 11,553.05 is: 15,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051.09 : 27,671.79 = 11,553.05 : x
  2. Step 2: Convert to fraction form
    20,051.09/27,671.79 = 11,553.05/x
  3. Step 3: Cross multiply
    20,051.09x = 27,671.79 × 11,553.05
  4. Step 4: Simplify right side
    20,051.09x = 319,693,573.46
  5. Step 5: Solve for x
    x = 319,693,573.46/20,051.09
  6. Step 6: Final answer
    x = 15,943.95

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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.