Home / 21,371.67-29,493.45-11,940.84

Finding the Fourth Proportional to 21,371.67, 29,493.45 and 11,940.84

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Solution

The fourth proportional to 21,371.67, 29,493.45 and 11,940.84 is: 16,478.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,371.67 : 29,493.45 = 11,940.84 : x
  2. Step 2: Convert to fraction form
    21,371.67/29,493.45 = 11,940.84/x
  3. Step 3: Cross multiply
    21,371.67x = 29,493.45 × 11,940.84
  4. Step 4: Simplify right side
    21,371.67x = 352,176,567.50
  5. Step 5: Solve for x
    x = 352,176,567.50/21,371.67
  6. Step 6: Final answer
    x = 16,478.66

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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.