Home / 47,414.36-71,121.65-19,326.80

Finding the Fourth Proportional to 47,414.36, 71,121.65 and 19,326.80

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Solution

The fourth proportional to 47,414.36, 71,121.65 and 19,326.80 is: 28,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,414.36 : 71,121.65 = 19,326.80 : x
  2. Step 2: Convert to fraction form
    47,414.36/71,121.65 = 19,326.80/x
  3. Step 3: Cross multiply
    47,414.36x = 71,121.65 × 19,326.80
  4. Step 4: Simplify right side
    47,414.36x = 1,374,553,986.39
  5. Step 5: Solve for x
    x = 1,374,553,986.39/47,414.36
  6. Step 6: Final answer
    x = 28,990.25

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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.