Home / 21,443.08-32,170.38-8,958.95

Finding the Fourth Proportional to 21,443.08, 32,170.38 and 8,958.95

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Solution

The fourth proportional to 21,443.08, 32,170.38 and 8,958.95 is: 13,440.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,443.08 : 32,170.38 = 8,958.95 : x
  2. Step 2: Convert to fraction form
    21,443.08/32,170.38 = 8,958.95/x
  3. Step 3: Cross multiply
    21,443.08x = 32,170.38 × 8,958.95
  4. Step 4: Simplify right side
    21,443.08x = 288,212,825.90
  5. Step 5: Solve for x
    x = 288,212,825.90/21,443.08
  6. Step 6: Final answer
    x = 13,440.83

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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.