Home / 19,743.80-29,627.40-7,272.59

Finding the Fourth Proportional to 19,743.80, 29,627.40 and 7,272.59

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Solution

The fourth proportional to 19,743.80, 29,627.40 and 7,272.59 is: 10,913.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,743.80 : 29,627.40 = 7,272.59 : x
  2. Step 2: Convert to fraction form
    19,743.80/29,627.40 = 7,272.59/x
  3. Step 3: Cross multiply
    19,743.80x = 29,627.40 × 7,272.59
  4. Step 4: Simplify right side
    19,743.80x = 215,467,932.97
  5. Step 5: Solve for x
    x = 215,467,932.97/19,743.80
  6. Step 6: Final answer
    x = 10,913.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.