Home / 21,375-29,497.50-11,943.56

Finding the Fourth Proportional to 21,375, 29,497.50 and 11,943.56

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Solution

The fourth proportional to 21,375, 29,497.50 and 11,943.56 is: 16,482.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375 : 29,497.50 = 11,943.56 : x
  2. Step 2: Convert to fraction form
    21,375/29,497.50 = 11,943.56/x
  3. Step 3: Cross multiply
    21,375x = 29,497.50 × 11,943.56
  4. Step 4: Simplify right side
    21,375x = 352,305,234.84
  5. Step 5: Solve for x
    x = 352,305,234.84/21,375
  6. Step 6: Final answer
    x = 16,482.12

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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.