Home / 21,849.44-30,152.24-12,418

Finding the Fourth Proportional to 21,849.44, 30,152.24 and 12,418

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Solution

The fourth proportional to 21,849.44, 30,152.24 and 12,418 is: 17,136.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,849.44 : 30,152.24 = 12,418 : x
  2. Step 2: Convert to fraction form
    21,849.44/30,152.24 = 12,418/x
  3. Step 3: Cross multiply
    21,849.44x = 30,152.24 × 12,418
  4. Step 4: Simplify right side
    21,849.44x = 374,430,516.32
  5. Step 5: Solve for x
    x = 374,430,516.32/21,849.44
  6. Step 6: Final answer
    x = 17,136.85

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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.