Home / 21,661.62-32,492.70-7,622.07

Finding the Fourth Proportional to 21,661.62, 32,492.70 and 7,622.07

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Solution

The fourth proportional to 21,661.62, 32,492.70 and 7,622.07 is: 11,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,661.62 : 32,492.70 = 7,622.07 : x
  2. Step 2: Convert to fraction form
    21,661.62/32,492.70 = 7,622.07/x
  3. Step 3: Cross multiply
    21,661.62x = 32,492.70 × 7,622.07
  4. Step 4: Simplify right side
    21,661.62x = 247,661,633.89
  5. Step 5: Solve for x
    x = 247,661,633.89/21,661.62
  6. Step 6: Final answer
    x = 11,433.20

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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.