Home / 33,128.58-45,717.12-18,791.04

Finding the Fourth Proportional to 33,128.58, 45,717.12 and 18,791.04

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Solution

The fourth proportional to 33,128.58, 45,717.12 and 18,791.04 is: 25,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,128.58 : 45,717.12 = 18,791.04 : x
  2. Step 2: Convert to fraction form
    33,128.58/45,717.12 = 18,791.04/x
  3. Step 3: Cross multiply
    33,128.58x = 45,717.12 × 18,791.04
  4. Step 4: Simplify right side
    33,128.58x = 859,072,230.60
  5. Step 5: Solve for x
    x = 859,072,230.60/33,128.58
  6. Step 6: Final answer
    x = 25,931.45

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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.