Home / 27,183.51-40,722.15-18,730.08

Finding the Fourth Proportional to 27,183.51, 40,722.15 and 18,730.08

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Solution

The fourth proportional to 27,183.51, 40,722.15 and 18,730.08 is: 28,058.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,183.51 : 40,722.15 = 18,730.08 : x
  2. Step 2: Convert to fraction form
    27,183.51/40,722.15 = 18,730.08/x
  3. Step 3: Cross multiply
    27,183.51x = 40,722.15 × 18,730.08
  4. Step 4: Simplify right side
    27,183.51x = 762,729,127.27
  5. Step 5: Solve for x
    x = 762,729,127.27/27,183.51
  6. Step 6: Final answer
    x = 28,058.52

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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.