Home / 22,129.73-33,172.09-8,812.16

Finding the Fourth Proportional to 22,129.73, 33,172.09 and 8,812.16

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Solution

The fourth proportional to 22,129.73, 33,172.09 and 8,812.16 is: 13,209.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129.73 : 33,172.09 = 8,812.16 : x
  2. Step 2: Convert to fraction form
    22,129.73/33,172.09 = 8,812.16/x
  3. Step 3: Cross multiply
    22,129.73x = 33,172.09 × 8,812.16
  4. Step 4: Simplify right side
    22,129.73x = 292,317,725.90
  5. Step 5: Solve for x
    x = 292,317,725.90/22,129.73
  6. Step 6: Final answer
    x = 13,209.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.