Home / 19,839.15-27,375.93-11,343.47

Finding the Fourth Proportional to 19,839.15, 27,375.93 and 11,343.47

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Solution

The fourth proportional to 19,839.15, 27,375.93 and 11,343.47 is: 15,652.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839.15 : 27,375.93 = 11,343.47 : x
  2. Step 2: Convert to fraction form
    19,839.15/27,375.93 = 11,343.47/x
  3. Step 3: Cross multiply
    19,839.15x = 27,375.93 × 11,343.47
  4. Step 4: Simplify right side
    19,839.15x = 310,537,903.80
  5. Step 5: Solve for x
    x = 310,537,903.80/19,839.15
  6. Step 6: Final answer
    x = 15,652.78

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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.