Home / 42,551.73-63,796.34-20,380.68

Finding the Fourth Proportional to 42,551.73, 63,796.34 and 20,380.68

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Solution

The fourth proportional to 42,551.73, 63,796.34 and 20,380.68 is: 30,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,551.73 : 63,796.34 = 20,380.68 : x
  2. Step 2: Convert to fraction form
    42,551.73/63,796.34 = 20,380.68/x
  3. Step 3: Cross multiply
    42,551.73x = 63,796.34 × 20,380.68
  4. Step 4: Simplify right side
    42,551.73x = 1,300,212,841.66
  5. Step 5: Solve for x
    x = 1,300,212,841.66/42,551.73
  6. Step 6: Final answer
    x = 30,556.05

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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.