Home / 20,272.84-27,954.44-13,186.12

Finding the Fourth Proportional to 20,272.84, 27,954.44 and 13,186.12

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Solution

The fourth proportional to 20,272.84, 27,954.44 and 13,186.12 is: 18,182.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.84 : 27,954.44 = 13,186.12 : x
  2. Step 2: Convert to fraction form
    20,272.84/27,954.44 = 13,186.12/x
  3. Step 3: Cross multiply
    20,272.84x = 27,954.44 × 13,186.12
  4. Step 4: Simplify right side
    20,272.84x = 368,610,600.37
  5. Step 5: Solve for x
    x = 368,610,600.37/20,272.84
  6. Step 6: Final answer
    x = 18,182.48

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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.