Home / 28,634.69-42,905.86-15,493.25

Finding the Fourth Proportional to 28,634.69, 42,905.86 and 15,493.25

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Solution

The fourth proportional to 28,634.69, 42,905.86 and 15,493.25 is: 23,214.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,634.69 : 42,905.86 = 15,493.25 : x
  2. Step 2: Convert to fraction form
    28,634.69/42,905.86 = 15,493.25/x
  3. Step 3: Cross multiply
    28,634.69x = 42,905.86 × 15,493.25
  4. Step 4: Simplify right side
    28,634.69x = 664,751,215.45
  5. Step 5: Solve for x
    x = 664,751,215.45/28,634.69
  6. Step 6: Final answer
    x = 23,214.89

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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.