Home / 19,988.43-27,584.93-11,493.31

Finding the Fourth Proportional to 19,988.43, 27,584.93 and 11,493.31

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Solution

The fourth proportional to 19,988.43, 27,584.93 and 11,493.31 is: 15,861.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.43 : 27,584.93 = 11,493.31 : x
  2. Step 2: Convert to fraction form
    19,988.43/27,584.93 = 11,493.31/x
  3. Step 3: Cross multiply
    19,988.43x = 27,584.93 × 11,493.31
  4. Step 4: Simplify right side
    19,988.43x = 317,042,025.39
  5. Step 5: Solve for x
    x = 317,042,025.39/19,988.43
  6. Step 6: Final answer
    x = 15,861.28

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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.