Home / 30,676.78-45,968.01-18,171.92

Finding the Fourth Proportional to 30,676.78, 45,968.01 and 18,171.92

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Solution

The fourth proportional to 30,676.78, 45,968.01 and 18,171.92 is: 27,229.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,676.78 : 45,968.01 = 18,171.92 : x
  2. Step 2: Convert to fraction form
    30,676.78/45,968.01 = 18,171.92/x
  3. Step 3: Cross multiply
    30,676.78x = 45,968.01 × 18,171.92
  4. Step 4: Simplify right side
    30,676.78x = 835,326,917.77
  5. Step 5: Solve for x
    x = 835,326,917.77/30,676.78
  6. Step 6: Final answer
    x = 27,229.95

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1.5x scale

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.