Home / 21,601.82-32,407.08-9,121.84

Finding the Fourth Proportional to 21,601.82, 32,407.08 and 9,121.84

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Solution

The fourth proportional to 21,601.82, 32,407.08 and 9,121.84 is: 13,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.82 : 32,407.08 = 9,121.84 : x
  2. Step 2: Convert to fraction form
    21,601.82/32,407.08 = 9,121.84/x
  3. Step 3: Cross multiply
    21,601.82x = 32,407.08 × 9,121.84
  4. Step 4: Simplify right side
    21,601.82x = 295,612,198.63
  5. Step 5: Solve for x
    x = 295,612,198.63/21,601.82
  6. Step 6: Final answer
    x = 13,684.60

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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.