Home / 39,930.54-59,908.29-11,850.75

Finding the Fourth Proportional to 39,930.54, 59,908.29 and 11,850.75

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Solution

The fourth proportional to 39,930.54, 59,908.29 and 11,850.75 is: 17,779.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930.54 : 59,908.29 = 11,850.75 : x
  2. Step 2: Convert to fraction form
    39,930.54/59,908.29 = 11,850.75/x
  3. Step 3: Cross multiply
    39,930.54x = 59,908.29 × 11,850.75
  4. Step 4: Simplify right side
    39,930.54x = 709,958,167.72
  5. Step 5: Solve for x
    x = 709,958,167.72/39,930.54
  6. Step 6: Final answer
    x = 17,779.83

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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.