Home / 21,450.62-32,175.83-5,440.16

Finding the Fourth Proportional to 21,450.62, 32,175.83 and 5,440.16

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Solution

The fourth proportional to 21,450.62, 32,175.83 and 5,440.16 is: 8,160.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.62 : 32,175.83 = 5,440.16 : x
  2. Step 2: Convert to fraction form
    21,450.62/32,175.83 = 5,440.16/x
  3. Step 3: Cross multiply
    21,450.62x = 32,175.83 × 5,440.16
  4. Step 4: Simplify right side
    21,450.62x = 175,041,757.37
  5. Step 5: Solve for x
    x = 175,041,757.37/21,450.62
  6. Step 6: Final answer
    x = 8,160.22

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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.