Home / 20,153.12-30,229.64-5,362.04

Finding the Fourth Proportional to 20,153.12, 30,229.64 and 5,362.04

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Solution

The fourth proportional to 20,153.12, 30,229.64 and 5,362.04 is: 8,043.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.12 : 30,229.64 = 5,362.04 : x
  2. Step 2: Convert to fraction form
    20,153.12/30,229.64 = 5,362.04/x
  3. Step 3: Cross multiply
    20,153.12x = 30,229.64 × 5,362.04
  4. Step 4: Simplify right side
    20,153.12x = 162,092,387.72
  5. Step 5: Solve for x
    x = 162,092,387.72/20,153.12
  6. Step 6: Final answer
    x = 8,043.04

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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.