Home / 21,375.09-29,497.53-11,943.65

Finding the Fourth Proportional to 21,375.09, 29,497.53 and 11,943.65

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Solution

The fourth proportional to 21,375.09, 29,497.53 and 11,943.65 is: 16,482.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375.09 : 29,497.53 = 11,943.65 : x
  2. Step 2: Convert to fraction form
    21,375.09/29,497.53 = 11,943.65/x
  3. Step 3: Cross multiply
    21,375.09x = 29,497.53 × 11,943.65
  4. Step 4: Simplify right side
    21,375.09x = 352,308,292.72
  5. Step 5: Solve for x
    x = 352,308,292.72/21,375.09
  6. Step 6: Final answer
    x = 16,482.19

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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.