Home / 21,512.96-29,680.50-13,441.14

Finding the Fourth Proportional to 21,512.96, 29,680.50 and 13,441.14

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Solution

The fourth proportional to 21,512.96, 29,680.50 and 13,441.14 is: 18,544.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,512.96 : 29,680.50 = 13,441.14 : x
  2. Step 2: Convert to fraction form
    21,512.96/29,680.50 = 13,441.14/x
  3. Step 3: Cross multiply
    21,512.96x = 29,680.50 × 13,441.14
  4. Step 4: Simplify right side
    21,512.96x = 398,939,755.77
  5. Step 5: Solve for x
    x = 398,939,755.77/21,512.96
  6. Step 6: Final answer
    x = 18,544.16

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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.