Home / 21,884.16-30,197.76-12,451.84

Finding the Fourth Proportional to 21,884.16, 30,197.76 and 12,451.84

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Solution

The fourth proportional to 21,884.16, 30,197.76 and 12,451.84 is: 17,182.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,884.16 : 30,197.76 = 12,451.84 : x
  2. Step 2: Convert to fraction form
    21,884.16/30,197.76 = 12,451.84/x
  3. Step 3: Cross multiply
    21,884.16x = 30,197.76 × 12,451.84
  4. Step 4: Simplify right side
    21,884.16x = 376,017,675.88
  5. Step 5: Solve for x
    x = 376,017,675.88/21,884.16
  6. Step 6: Final answer
    x = 17,182.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.