Home / 47,979.68-71,979.24-18,398.48

Finding the Fourth Proportional to 47,979.68, 71,979.24 and 18,398.48

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Solution

The fourth proportional to 47,979.68, 71,979.24 and 18,398.48 is: 27,601.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,979.68 : 71,979.24 = 18,398.48 : x
  2. Step 2: Convert to fraction form
    47,979.68/71,979.24 = 18,398.48/x
  3. Step 3: Cross multiply
    47,979.68x = 71,979.24 × 18,398.48
  4. Step 4: Simplify right side
    47,979.68x = 1,324,308,607.56
  5. Step 5: Solve for x
    x = 1,324,308,607.56/47,979.68
  6. Step 6: Final answer
    x = 27,601.45

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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.