Home / 28,699.96-39,591.28-18,634.08

Finding the Fourth Proportional to 28,699.96, 39,591.28 and 18,634.08

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Solution

The fourth proportional to 28,699.96, 39,591.28 and 18,634.08 is: 25,705.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.96 : 39,591.28 = 18,634.08 : x
  2. Step 2: Convert to fraction form
    28,699.96/39,591.28 = 18,634.08/x
  3. Step 3: Cross multiply
    28,699.96x = 39,591.28 × 18,634.08
  4. Step 4: Simplify right side
    28,699.96x = 737,747,078.82
  5. Step 5: Solve for x
    x = 737,747,078.82/28,699.96
  6. Step 6: Final answer
    x = 25,705.51

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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.