Home / 20,400.14-30,600.21-6,558.86

Finding the Fourth Proportional to 20,400.14, 30,600.21 and 6,558.86

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Solution

The fourth proportional to 20,400.14, 30,600.21 and 6,558.86 is: 9,838.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.14 : 30,600.21 = 6,558.86 : x
  2. Step 2: Convert to fraction form
    20,400.14/30,600.21 = 6,558.86/x
  3. Step 3: Cross multiply
    20,400.14x = 30,600.21 × 6,558.86
  4. Step 4: Simplify right side
    20,400.14x = 200,702,340.36
  5. Step 5: Solve for x
    x = 200,702,340.36/20,400.14
  6. Step 6: Final answer
    x = 9,838.28

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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.