Home / 39,899.25-59,857.61-11,821.51

Finding the Fourth Proportional to 39,899.25, 59,857.61 and 11,821.51

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Solution

The fourth proportional to 39,899.25, 59,857.61 and 11,821.51 is: 17,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,899.25 : 59,857.61 = 11,821.51 : x
  2. Step 2: Convert to fraction form
    39,899.25/59,857.61 = 11,821.51/x
  3. Step 3: Cross multiply
    39,899.25x = 59,857.61 × 11,821.51
  4. Step 4: Simplify right side
    39,899.25x = 707,607,335.19
  5. Step 5: Solve for x
    x = 707,607,335.19/39,899.25
  6. Step 6: Final answer
    x = 17,734.85

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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.