Home / 39,716.67-54,807.26-21,810.61

Finding the Fourth Proportional to 39,716.67, 54,807.26 and 21,810.61

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Solution

The fourth proportional to 39,716.67, 54,807.26 and 21,810.61 is: 30,097.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,716.67 : 54,807.26 = 21,810.61 : x
  2. Step 2: Convert to fraction form
    39,716.67/54,807.26 = 21,810.61/x
  3. Step 3: Cross multiply
    39,716.67x = 54,807.26 × 21,810.61
  4. Step 4: Simplify right side
    39,716.67x = 1,195,379,526.96
  5. Step 5: Solve for x
    x = 1,195,379,526.96/39,716.67
  6. Step 6: Final answer
    x = 30,097.68

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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.