Home / 21,459.03-32,169.57-8,122.76

Finding the Fourth Proportional to 21,459.03, 32,169.57 and 8,122.76

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Solution

The fourth proportional to 21,459.03, 32,169.57 and 8,122.76 is: 12,176.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459.03 : 32,169.57 = 8,122.76 : x
  2. Step 2: Convert to fraction form
    21,459.03/32,169.57 = 8,122.76/x
  3. Step 3: Cross multiply
    21,459.03x = 32,169.57 × 8,122.76
  4. Step 4: Simplify right side
    21,459.03x = 261,305,546.69
  5. Step 5: Solve for x
    x = 261,305,546.69/21,459.03
  6. Step 6: Final answer
    x = 12,176.95

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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.