Home / 19,922.18-27,489.42-11,422.67

Finding the Fourth Proportional to 19,922.18, 27,489.42 and 11,422.67

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Solution

The fourth proportional to 19,922.18, 27,489.42 and 11,422.67 is: 15,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,922.18 : 27,489.42 = 11,422.67 : x
  2. Step 2: Convert to fraction form
    19,922.18/27,489.42 = 11,422.67/x
  3. Step 3: Cross multiply
    19,922.18x = 27,489.42 × 11,422.67
  4. Step 4: Simplify right side
    19,922.18x = 314,002,435.70
  5. Step 5: Solve for x
    x = 314,002,435.70/19,922.18
  6. Step 6: Final answer
    x = 15,761.45

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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.