Home / 21,512.75-32,261.83-8,182.58

Finding the Fourth Proportional to 21,512.75, 32,261.83 and 8,182.58

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Solution

The fourth proportional to 21,512.75, 32,261.83 and 8,182.58 is: 12,271.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,512.75 : 32,261.83 = 8,182.58 : x
  2. Step 2: Convert to fraction form
    21,512.75/32,261.83 = 8,182.58/x
  3. Step 3: Cross multiply
    21,512.75x = 32,261.83 × 8,182.58
  4. Step 4: Simplify right side
    21,512.75x = 263,984,823.16
  5. Step 5: Solve for x
    x = 263,984,823.16/21,512.75
  6. Step 6: Final answer
    x = 12,271.09

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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.