Home / 21,161.16-29,192.99-13,606.11

Finding the Fourth Proportional to 21,161.16, 29,192.99 and 13,606.11

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Solution

The fourth proportional to 21,161.16, 29,192.99 and 13,606.11 is: 18,770.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,161.16 : 29,192.99 = 13,606.11 : x
  2. Step 2: Convert to fraction form
    21,161.16/29,192.99 = 13,606.11/x
  3. Step 3: Cross multiply
    21,161.16x = 29,192.99 × 13,606.11
  4. Step 4: Simplify right side
    21,161.16x = 397,202,965.14
  5. Step 5: Solve for x
    x = 397,202,965.14/21,161.16
  6. Step 6: Final answer
    x = 18,770.38

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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.