Home / 21,482.26-29,645.80-11,922.36

Finding the Fourth Proportional to 21,482.26, 29,645.80 and 11,922.36

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Solution

The fourth proportional to 21,482.26, 29,645.80 and 11,922.36 is: 16,453.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.26 : 29,645.80 = 11,922.36 : x
  2. Step 2: Convert to fraction form
    21,482.26/29,645.80 = 11,922.36/x
  3. Step 3: Cross multiply
    21,482.26x = 29,645.80 × 11,922.36
  4. Step 4: Simplify right side
    21,482.26x = 353,447,900.09
  5. Step 5: Solve for x
    x = 353,447,900.09/21,482.26
  6. Step 6: Final answer
    x = 16,453.01

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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.