Home / 21,619.36-32,441.54-9,138.58

Finding the Fourth Proportional to 21,619.36, 32,441.54 and 9,138.58

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Solution

The fourth proportional to 21,619.36, 32,441.54 and 9,138.58 is: 13,713.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619.36 : 32,441.54 = 9,138.58 : x
  2. Step 2: Convert to fraction form
    21,619.36/32,441.54 = 9,138.58/x
  3. Step 3: Cross multiply
    21,619.36x = 32,441.54 × 9,138.58
  4. Step 4: Simplify right side
    21,619.36x = 296,469,423.56
  5. Step 5: Solve for x
    x = 296,469,423.56/21,619.36
  6. Step 6: Final answer
    x = 13,713.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.