Home / 27,960.42-38,579.05-20,410.86

Finding the Fourth Proportional to 27,960.42, 38,579.05 and 20,410.86

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Solution

The fourth proportional to 27,960.42, 38,579.05 and 20,410.86 is: 28,162.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.42 : 38,579.05 = 20,410.86 : x
  2. Step 2: Convert to fraction form
    27,960.42/38,579.05 = 20,410.86/x
  3. Step 3: Cross multiply
    27,960.42x = 38,579.05 × 20,410.86
  4. Step 4: Simplify right side
    27,960.42x = 787,431,588.48
  5. Step 5: Solve for x
    x = 787,431,588.48/27,960.42
  6. Step 6: Final answer
    x = 28,162.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.