Home / 47,721.96-71,592.16-18,137.48

Finding the Fourth Proportional to 47,721.96, 71,592.16 and 18,137.48

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Solution

The fourth proportional to 47,721.96, 71,592.16 and 18,137.48 is: 27,209.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,721.96 : 71,592.16 = 18,137.48 : x
  2. Step 2: Convert to fraction form
    47,721.96/71,592.16 = 18,137.48/x
  3. Step 3: Cross multiply
    47,721.96x = 71,592.16 × 18,137.48
  4. Step 4: Simplify right side
    47,721.96x = 1,298,501,279.47
  5. Step 5: Solve for x
    x = 1,298,501,279.47/47,721.96
  6. Step 6: Final answer
    x = 27,209.73

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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.