Home / 21,962.80-32,950.32-7,172.60

Finding the Fourth Proportional to 21,962.80, 32,950.32 and 7,172.60

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Solution

The fourth proportional to 21,962.80, 32,950.32 and 7,172.60 is: 10,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,962.80 : 32,950.32 = 7,172.60 : x
  2. Step 2: Convert to fraction form
    21,962.80/32,950.32 = 7,172.60/x
  3. Step 3: Cross multiply
    21,962.80x = 32,950.32 × 7,172.60
  4. Step 4: Simplify right side
    21,962.80x = 236,339,465.23
  5. Step 5: Solve for x
    x = 236,339,465.23/21,962.80
  6. Step 6: Final answer
    x = 10,760.90

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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.