Home / 34,078.73-47,028.20-19,740.51

Finding the Fourth Proportional to 34,078.73, 47,028.20 and 19,740.51

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Solution

The fourth proportional to 34,078.73, 47,028.20 and 19,740.51 is: 27,241.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,078.73 : 47,028.20 = 19,740.51 : x
  2. Step 2: Convert to fraction form
    34,078.73/47,028.20 = 19,740.51/x
  3. Step 3: Cross multiply
    34,078.73x = 47,028.20 × 19,740.51
  4. Step 4: Simplify right side
    34,078.73x = 928,360,553.68
  5. Step 5: Solve for x
    x = 928,360,553.68/34,078.73
  6. Step 6: Final answer
    x = 27,241.65

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1.5x scale

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.