Home / 39,919.89-59,868.50-11,842.05

Finding the Fourth Proportional to 39,919.89, 59,868.50 and 11,842.05

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Solution

The fourth proportional to 39,919.89, 59,868.50 and 11,842.05 is: 17,759.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,919.89 : 59,868.50 = 11,842.05 : x
  2. Step 2: Convert to fraction form
    39,919.89/59,868.50 = 11,842.05/x
  3. Step 3: Cross multiply
    39,919.89x = 59,868.50 × 11,842.05
  4. Step 4: Simplify right side
    39,919.89x = 708,965,711.21
  5. Step 5: Solve for x
    x = 708,965,711.21/39,919.89
  6. Step 6: Final answer
    x = 17,759.71

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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.