Home / 21,440.75-29,591.82-12,493.49

Finding the Fourth Proportional to 21,440.75, 29,591.82 and 12,493.49

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Solution

The fourth proportional to 21,440.75, 29,591.82 and 12,493.49 is: 17,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.75 : 29,591.82 = 12,493.49 : x
  2. Step 2: Convert to fraction form
    21,440.75/29,591.82 = 12,493.49/x
  3. Step 3: Cross multiply
    21,440.75x = 29,591.82 × 12,493.49
  4. Step 4: Simplify right side
    21,440.75x = 369,704,959.29
  5. Step 5: Solve for x
    x = 369,704,959.29/21,440.75
  6. Step 6: Final answer
    x = 17,243.10

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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.