Home / 28,084.11-38,755.26-18,512.34

Finding the Fourth Proportional to 28,084.11, 38,755.26 and 18,512.34

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Solution

The fourth proportional to 28,084.11, 38,755.26 and 18,512.34 is: 25,546.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084.11 : 38,755.26 = 18,512.34 : x
  2. Step 2: Convert to fraction form
    28,084.11/38,755.26 = 18,512.34/x
  3. Step 3: Cross multiply
    28,084.11x = 38,755.26 × 18,512.34
  4. Step 4: Simplify right side
    28,084.11x = 717,450,549.91
  5. Step 5: Solve for x
    x = 717,450,549.91/28,084.11
  6. Step 6: Final answer
    x = 25,546.49

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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.