Home / 20,168.49-27,817.94-15,552.22

Finding the Fourth Proportional to 20,168.49, 27,817.94 and 15,552.22

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Solution

The fourth proportional to 20,168.49, 27,817.94 and 15,552.22 is: 21,450.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.49 : 27,817.94 = 15,552.22 : x
  2. Step 2: Convert to fraction form
    20,168.49/27,817.94 = 15,552.22/x
  3. Step 3: Cross multiply
    20,168.49x = 27,817.94 × 15,552.22
  4. Step 4: Simplify right side
    20,168.49x = 432,630,722.83
  5. Step 5: Solve for x
    x = 432,630,722.83/20,168.49
  6. Step 6: Final answer
    x = 21,450.82

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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.