Home / 21,168.22-29,210.62-11,606.58

Finding the Fourth Proportional to 21,168.22, 29,210.62 and 11,606.58

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Solution

The fourth proportional to 21,168.22, 29,210.62 and 11,606.58 is: 16,016.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168.22 : 29,210.62 = 11,606.58 : x
  2. Step 2: Convert to fraction form
    21,168.22/29,210.62 = 11,606.58/x
  3. Step 3: Cross multiply
    21,168.22x = 29,210.62 × 11,606.58
  4. Step 4: Simplify right side
    21,168.22x = 339,035,397.88
  5. Step 5: Solve for x
    x = 339,035,397.88/21,168.22
  6. Step 6: Final answer
    x = 16,016.25

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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.