Home / 27,478.72-37,906.68-17,390.16

Finding the Fourth Proportional to 27,478.72, 37,906.68 and 17,390.16

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Solution

The fourth proportional to 27,478.72, 37,906.68 and 17,390.16 is: 23,989.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,478.72 : 37,906.68 = 17,390.16 : x
  2. Step 2: Convert to fraction form
    27,478.72/37,906.68 = 17,390.16/x
  3. Step 3: Cross multiply
    27,478.72x = 37,906.68 × 17,390.16
  4. Step 4: Simplify right side
    27,478.72x = 659,203,230.27
  5. Step 5: Solve for x
    x = 659,203,230.27/27,478.72
  6. Step 6: Final answer
    x = 23,989.59

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1.5x scale

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.