Home / 28,376.73-39,163.10-18,301.14

Finding the Fourth Proportional to 28,376.73, 39,163.10 and 18,301.14

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Solution

The fourth proportional to 28,376.73, 39,163.10 and 18,301.14 is: 25,257.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,376.73 : 39,163.10 = 18,301.14 : x
  2. Step 2: Convert to fraction form
    28,376.73/39,163.10 = 18,301.14/x
  3. Step 3: Cross multiply
    28,376.73x = 39,163.10 × 18,301.14
  4. Step 4: Simplify right side
    28,376.73x = 716,729,284.43
  5. Step 5: Solve for x
    x = 716,729,284.43/28,376.73
  6. Step 6: Final answer
    x = 25,257.64

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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.