Home / 21,661.43-32,450.09-12,272.58

Finding the Fourth Proportional to 21,661.43, 32,450.09 and 12,272.58

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Solution

The fourth proportional to 21,661.43, 32,450.09 and 12,272.58 is: 18,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,661.43 : 32,450.09 = 12,272.58 : x
  2. Step 2: Convert to fraction form
    21,661.43/32,450.09 = 12,272.58/x
  3. Step 3: Cross multiply
    21,661.43x = 32,450.09 × 12,272.58
  4. Step 4: Simplify right side
    21,661.43x = 398,246,264.17
  5. Step 5: Solve for x
    x = 398,246,264.17/21,661.43
  6. Step 6: Final answer
    x = 18,385.04

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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.