Home / 20,400.90-30,594.86-6,546.66

Finding the Fourth Proportional to 20,400.90, 30,594.86 and 6,546.66

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Solution

The fourth proportional to 20,400.90, 30,594.86 and 6,546.66 is: 9,817.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.90 : 30,594.86 = 6,546.66 : x
  2. Step 2: Convert to fraction form
    20,400.90/30,594.86 = 6,546.66/x
  3. Step 3: Cross multiply
    20,400.90x = 30,594.86 × 6,546.66
  4. Step 4: Simplify right side
    20,400.90x = 200,294,060.08
  5. Step 5: Solve for x
    x = 200,294,060.08/20,400.90
  6. Step 6: Final answer
    x = 9,817.90

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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.