Home / 19,640.22-27,073.74-15,381.96

Finding the Fourth Proportional to 19,640.22, 27,073.74 and 15,381.96

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Solution

The fourth proportional to 19,640.22, 27,073.74 and 15,381.96 is: 21,203.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.22 : 27,073.74 = 15,381.96 : x
  2. Step 2: Convert to fraction form
    19,640.22/27,073.74 = 15,381.96/x
  3. Step 3: Cross multiply
    19,640.22x = 27,073.74 × 15,381.96
  4. Step 4: Simplify right side
    19,640.22x = 416,447,185.73
  5. Step 5: Solve for x
    x = 416,447,185.73/19,640.22
  6. Step 6: Final answer
    x = 21,203.79

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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.