Home / 21,396.26-29,525.96-11,705.56

Finding the Fourth Proportional to 21,396.26, 29,525.96 and 11,705.56

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Solution

The fourth proportional to 21,396.26, 29,525.96 and 11,705.56 is: 16,153.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.26 : 29,525.96 = 11,705.56 : x
  2. Step 2: Convert to fraction form
    21,396.26/29,525.96 = 11,705.56/x
  3. Step 3: Cross multiply
    21,396.26x = 29,525.96 × 11,705.56
  4. Step 4: Simplify right side
    21,396.26x = 345,617,851.79
  5. Step 5: Solve for x
    x = 345,617,851.79/21,396.26
  6. Step 6: Final answer
    x = 16,153.19

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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.