Home / 20,722.50-31,089.82-6,682.24

Finding the Fourth Proportional to 20,722.50, 31,089.82 and 6,682.24

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Solution

The fourth proportional to 20,722.50, 31,089.82 and 6,682.24 is: 10,025.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.50 : 31,089.82 = 6,682.24 : x
  2. Step 2: Convert to fraction form
    20,722.50/31,089.82 = 6,682.24/x
  3. Step 3: Cross multiply
    20,722.50x = 31,089.82 × 6,682.24
  4. Step 4: Simplify right side
    20,722.50x = 207,749,730.33
  5. Step 5: Solve for x
    x = 207,749,730.33/20,722.50
  6. Step 6: Final answer
    x = 10,025.32

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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.