Home / 21,913.22-30,241.42-12,484.82

Finding the Fourth Proportional to 21,913.22, 30,241.42 and 12,484.82

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Solution

The fourth proportional to 21,913.22, 30,241.42 and 12,484.82 is: 17,229.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.22 : 30,241.42 = 12,484.82 : x
  2. Step 2: Convert to fraction form
    21,913.22/30,241.42 = 12,484.82/x
  3. Step 3: Cross multiply
    21,913.22x = 30,241.42 × 12,484.82
  4. Step 4: Simplify right side
    21,913.22x = 377,558,685.24
  5. Step 5: Solve for x
    x = 377,558,685.24/21,913.22
  6. Step 6: Final answer
    x = 17,229.72

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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.