Home / 27,997.92-38,635.38-15,422.67

Finding the Fourth Proportional to 27,997.92, 38,635.38 and 15,422.67

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Solution

The fourth proportional to 27,997.92, 38,635.38 and 15,422.67 is: 21,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,997.92 : 38,635.38 = 15,422.67 : x
  2. Step 2: Convert to fraction form
    27,997.92/38,635.38 = 15,422.67/x
  3. Step 3: Cross multiply
    27,997.92x = 38,635.38 × 15,422.67
  4. Step 4: Simplify right side
    27,997.92x = 595,860,716.06
  5. Step 5: Solve for x
    x = 595,860,716.06/27,997.92
  6. Step 6: Final answer
    x = 21,282.32

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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.