Home / 21,630.94-32,450.74-9,150.92

Finding the Fourth Proportional to 21,630.94, 32,450.74 and 9,150.92

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Solution

The fourth proportional to 21,630.94, 32,450.74 and 9,150.92 is: 13,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.94 : 32,450.74 = 9,150.92 : x
  2. Step 2: Convert to fraction form
    21,630.94/32,450.74 = 9,150.92/x
  3. Step 3: Cross multiply
    21,630.94x = 32,450.74 × 9,150.92
  4. Step 4: Simplify right side
    21,630.94x = 296,954,125.68
  5. Step 5: Solve for x
    x = 296,954,125.68/21,630.94
  6. Step 6: Final answer
    x = 13,728.21

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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.