Home / 21,998.26-30,350.59-13,491.64

Finding the Fourth Proportional to 21,998.26, 30,350.59 and 13,491.64

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Solution

The fourth proportional to 21,998.26, 30,350.59 and 13,491.64 is: 18,614.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.26 : 30,350.59 = 13,491.64 : x
  2. Step 2: Convert to fraction form
    21,998.26/30,350.59 = 13,491.64/x
  3. Step 3: Cross multiply
    21,998.26x = 30,350.59 × 13,491.64
  4. Step 4: Simplify right side
    21,998.26x = 409,479,234.07
  5. Step 5: Solve for x
    x = 409,479,234.07/21,998.26
  6. Step 6: Final answer
    x = 18,614.16

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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.