Home / 20,236.06-27,915.73-13,523.79

Finding the Fourth Proportional to 20,236.06, 27,915.73 and 13,523.79

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Solution

The fourth proportional to 20,236.06, 27,915.73 and 13,523.79 is: 18,656.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.06 : 27,915.73 = 13,523.79 : x
  2. Step 2: Convert to fraction form
    20,236.06/27,915.73 = 13,523.79/x
  3. Step 3: Cross multiply
    20,236.06x = 27,915.73 × 13,523.79
  4. Step 4: Simplify right side
    20,236.06x = 377,526,470.22
  5. Step 5: Solve for x
    x = 377,526,470.22/20,236.06
  6. Step 6: Final answer
    x = 18,656.13

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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.