Home / 20,083.64-27,717.08-11,133.95

Finding the Fourth Proportional to 20,083.64, 27,717.08 and 11,133.95

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Solution

The fourth proportional to 20,083.64, 27,717.08 and 11,133.95 is: 15,365.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.64 : 27,717.08 = 11,133.95 : x
  2. Step 2: Convert to fraction form
    20,083.64/27,717.08 = 11,133.95/x
  3. Step 3: Cross multiply
    20,083.64x = 27,717.08 × 11,133.95
  4. Step 4: Simplify right side
    20,083.64x = 308,600,388.61
  5. Step 5: Solve for x
    x = 308,600,388.61/20,083.64
  6. Step 6: Final answer
    x = 15,365.76

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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.