Home / 20,370.90-30,554.88-6,330.60

Finding the Fourth Proportional to 20,370.90, 30,554.88 and 6,330.60

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Solution

The fourth proportional to 20,370.90, 30,554.88 and 6,330.60 is: 9,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.90 : 30,554.88 = 6,330.60 : x
  2. Step 2: Convert to fraction form
    20,370.90/30,554.88 = 6,330.60/x
  3. Step 3: Cross multiply
    20,370.90x = 30,554.88 × 6,330.60
  4. Step 4: Simplify right side
    20,370.90x = 193,430,723.33
  5. Step 5: Solve for x
    x = 193,430,723.33/20,370.90
  6. Step 6: Final answer
    x = 9,495.44

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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.