Home / 47,878.39-71,822.50-18,321.09

Finding the Fourth Proportional to 47,878.39, 71,822.50 and 18,321.09

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Solution

The fourth proportional to 47,878.39, 71,822.50 and 18,321.09 is: 27,483.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,878.39 : 71,822.50 = 18,321.09 : x
  2. Step 2: Convert to fraction form
    47,878.39/71,822.50 = 18,321.09/x
  3. Step 3: Cross multiply
    47,878.39x = 71,822.50 × 18,321.09
  4. Step 4: Simplify right side
    47,878.39x = 1,315,866,171.39
  5. Step 5: Solve for x
    x = 1,315,866,171.39/47,878.39
  6. Step 6: Final answer
    x = 27,483.51

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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.