Home / 27,378.20-37,782.10-17,311.18

Finding the Fourth Proportional to 27,378.20, 37,782.10 and 17,311.18

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Solution

The fourth proportional to 27,378.20, 37,782.10 and 17,311.18 is: 23,889.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.20 : 37,782.10 = 17,311.18 : x
  2. Step 2: Convert to fraction form
    27,378.20/37,782.10 = 17,311.18/x
  3. Step 3: Cross multiply
    27,378.20x = 37,782.10 × 17,311.18
  4. Step 4: Simplify right side
    27,378.20x = 654,052,733.88
  5. Step 5: Solve for x
    x = 654,052,733.88/27,378.20
  6. Step 6: Final answer
    x = 23,889.54

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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.